20G Series Pencil Grinder

Industrial Benefits:

• The perfect tool for cleaning and polishing dies, porting and polishing engines, de-burring a casting.  This pencil grinder can be used anywhere carbide burrs are used for delicate material removal.
• 2 models to choose from (Side exhaust or Front exhaust)
• Runs 60,000RPM
• Rated Horsepower (0.1 H.P.75 W)
• Alloy steel case that is resistant to rust increases durability and performance.

Model 20-GM with SIDE Exhaust pencil grinder is the world industrial standard in pencil grinding over the past 30 years.(60,000 RPM)

Model 20-G pencil grinder with FRONT Exhaust (60,000 RPM).

Model 20-G pencil grinder pictured with optional air hose.

Optional: PENCIL DIE GRINDER KIT This kit includes: (1) 20-G or 20-G-M(1) 3/16" dia. x 5' long hose.(4) 1/8" carbide burrs(Cylindrical, plainTree, PointBall point, Tapered point(1) heavy-duty case(1) Air screen..

≡

20G Series Pencil Grinder Specifications

 

20G Series Pencil Grinder Specifications

Model	Exhaust Location	Throttle Type	Collet Size	Weight	Length	Speed	Dia	Inlet Size	Hose Size	Rated Power
20-G	Side	Push-Pull Sleeve	1/8"	4oz..11 kg	4.87 Inch123.7 mm	60,000RPM	.656"16.6mm	1/8" N.P.T	1/4"(6mm)	0.1 H.P.75 W
20-GM	Front	Push-Pull Sleeve	1/8"	4oz..11 kg	4.93 Inch125.2 mm	60,000RPM	.656"16.6mm	1/8" N.P.T	1/4"(6mm)	0.1 H.P.75 W

Features and Applications

• Applications:

• The perfect tool for cleaning and polishing dies, porting and polishing engines, de-burring casting and any job where carbide burrs are used for delicate material removal.

Carbide Burr Chart

Carbide burrs chart

Part No.	Description	Shank Size/ Desc.
530198	Taper
530200	Tree
530202	Ball
530204	Cylindrical Plain

40G Series Die Grinders

Industrial Benefits:

• The Henrytools 40GL Series die grinder provide for intensive grinding, contouring, deburring, and cleaning needs with carbide burrs, mounted points, abrasive wheels and flap wheels.
• Built-in 1/4" collet chuck can accommodate various mounted accessories.
• Tool runs between 18000RPM -22000RPM. (Specify speed when ordering.)
• Lower-cost high quality American made tool.
• Available in either an aluminum or rugged steel case.
• Larger diameter housing fits in the palm of your hand.
• Hardened steel motor parts for extended tool life..
• Adjustable side exhaust deflector.
• Unitized motor provides easy maintenance.

Model 40GLSK shown with thick and rugged steel case.  Pictured with a safety lockout lever throttle. Tool runs between 18000RPM -22000RPM. (Specify speed when ordering.)

Model 40GL shown with a thick aluminum case and standard lever throttle.  Tool runs between 18000RPM -22000RPM. (Specify speed when ordering.)

40G Extended Length Spindle Die Grinder Series

Industrial Benefits:

• The Henrytools 40GL Extended Spindle Series die grinder provide for intensive grinding, contouring, deburring, and cleaning needs with carbide burrs, mounted points, abrasive wheels and flap wheels. 
• Extended length spindles +3" or +6" for grinding in otherwise inaccessible areas.
• Tool runs between 18000RPM -22000RPM.
• (Specify speed when ordering.) Made in America.
• Capacity:
• Burrs/Mounted Stones of shank size 1/4 inch
• Working Air Consumption: 25 CFM (11.8 L/s)
  Recommended working air pressure: 90 p.s.i.
  
• *Tool is not designed for type 1 or 27 grinding wheels.
  Please view the other Henrytool model grinders that can accommodate type1 or 27 grinding wheel applications.

40GLS+6" Steel cased extended reach shaft die grinder. (shown with Steel case) Tool runs between 18000RPM -22000RPM.  (Specify speed when ordering.) 

Model 40GL+3" extended reach shaft die grinder. (shown with Aluminum case), Tool runs between 18000RPM -22000RPM. (Specify speed when ordering.)

40GP Pistol Grinders

 Industrial Benefits:

• Pistol handle for general grinding.
• Tool runs between 18000RPM -22000RPM. (Specify speed when ordering.)
• Hardened steel motor parts.
• Adjustable side exhaust deflector. Unitized motor provides easy maintenance.
• Collet chuck and spindle models accommodate various mounted accessories.
• Extended Length spindles +3" or +6" available upon request.
• Available with either an aluminum or steel exhaust Deflector.
• The Henrytool 40GP grinder provides a pistol grip handle for general grinding, contouring, deburring, and cleaning needs with carbide burrs, mounted points, abrasive wheels and flap wheels.
• Capacity: Burrs/Mounted Stones of shank size 1/4 inch. 

Model 40GP Pistol grinder with 1/4" built-in collet for use with carbide burrs. Pistol handle for general grinding. Extended Length spindles +3" or +6" available upon request.

41GP Pistol Grinder is rated for use with cut-off wheels as well as carbide burrs. An HT-1010 collet can be attached for use with mounting stones or carbide burrs. Tool runs between 18000RPM -22000RPM. (Specify speed when ordering.)

4125AG Series Die Grinders

Industrial Benefits:

• Available in either an aluminum or rugged steel case.
• Built-in 1/4" collet chuck can accommodate various mounted accessories.
• Adjustable SIDE exhaust deflector.
• Tool runs between 18000RPM -22000RPM. (Specify speed when ordering.)
• Small diameter housing fits in the palm of your hand
• One-Piece motor case for a comfortable grip.
• Hardened steel motor parts for extended tool life.
• Unitized motor provides easy maintenance.
• Capacity: Burrs/Mounted Stones of shank size 1/4 inch. 

The powerful and lightweight 4125AG Series Die grinders are some of the most popular grinders in american foundries.    

4125AGLSK Die grinder featuring an internal 1/4" collet shaft. Pictured with a STEEL (one-piece) case and Safety Lockout lever throttle.  (Pictured with grinding stone not included). Tool runs between 18000RPM -22000RPM. (Specify speed when ordering.)

4125AGL Die grinder with a light weight (one-piece)  aluminum case which makes this tool super easy to maneuver.  Tool features an internal 1/4" collet shaft for use with common carbide burrs and mounted stones.  Pictured with standard lever throttle. Slim profile is great for operators with smaller hands. 

4121G Series Erickson Style Collet Grinder

Industrial Benefits:

• Adjustable side exhaust deflector.
• Featuring an Erickson Style collet so different sized collet inserts can be used.
• Three piece Erickson collet can accommodate insert sizes ranging from 1/8", 1/4", 5/16", 3/8".
• The tool ships standard with a 1/4" collet insert.
• Tool runs between 18000RPM -22000RPM. (Specify speed when ordering.)
  Hardened steel motor parts.
• Unitized motor provides easy maintenance.
• Available in either an aluminum or steel housing.
  
• Unitized motor provides easy maintenance.
• Capacity: 
• The Henrytool 4121 Series die grinder provide for extensive grinding, contouring, deburring, and cleaning needs with carbide burrs, mounted points, abrasive wheels and flap wheels.
• Burrs/Mounted Stones of shank size 1/8 inch, 1/4 inch, 5/16 inch, 3/8 inch Working Air Consumption: 25 CFM (11.8 L/s) Recommended working air pressure: 90 p.s.i.

Model 4121GLS steel cased grinder shown with an Erickson type collet. (1/4" quick change collet insert is standard ).  For use with Burrs/Mounted Stones of shank size 1/8 inch, 1/4 inch, 5/16 inch, 3/8 inchSee chart for additional collet insert sizes available. Tool runs between 18000RPM -22000RPM. (Specify speed when ordering.)

4126G Series Side Exhaust Die Grinder

Industrial Benefits:

• Adjustable direction side exhaust deflector.
• Guarded for use with type 1 grinding wheel applications.
• One-Piece motor case for a comfortable grip.
• Tool runs between 18000RPM -22000RPM. (Specify speed when ordering.)
• Hardened steel motor parts.
• Unitized motor provides easy maintenance.
• An optional collet chuck can be purchased for adapting this grinder for use with carbide burrs and other mounted points.
  Available in either an aluminum or steel housing.
• Rated for use with grinding wheel sizes 4" (100mm).
• The Model 4126G series tool can easily be transformed into a collet type grinder for use with carbide burrs, mounted points and wire wheels.
• Capacity:
• Burrs/Mounted Stones of shank size 1/4 inch
• Working Air Consumption: 25 CFM (11.8 L/s)
  
• Tool can be used as a wheel grinder for type 1 or 27 grinding wheels. (An appropriate guard like  the 4504 must be purchased to accomplish this)
• Optional Collets can be purchased: Part No. #HT-1010 collet for use with (1/4" mounted points and carbide burrs can be mounted.)
  Part No. #HT-1010-3/8" collet (for 3/8" mounting of carbide burrs, etc.)

Model 4126GLSK Die Grinder with "Side" exhaust shown with safety lock lever and steel case.  Rated for use with Type 27 grinding wheels. Tool runs between 18000RPM -22000RPM. (Specify speed when ordering.)

4110-GL Front Exhaust Die Grinder

Industrial Benefits:

• Features a FRONT exhaust which blows metal chips away from the workpiece.
• One-Piece motor case for a comfortable grip.
• Tool runs between 18000RPM -22000RPM. (Specify speed when ordering.)
• Made in America.
• Hardened steel motor parts.
• Unitized motor provides easy maintenance.
• Built-In 1/4" collet chuck can models accommodate various mounted accessories.
• Available in either an aluminum or steel housing.
  

  Capacity:

• Burrs/Mounted Stones of shank size 1/4 inch
• Working Air Consumption: 25 CFM (11.8 L/s)
  Recommended working air pressure: 90 p.s.i.
  
• *Tool is not designed for type 1 or 27 grinding wheels.
  Please view the other Henrytool model grinders that can accommodate type1 or 27 grinding wheel applications.

Model 4110GL Aluminum case grinder featuring a (Front Exhaust) shown with built-in 1/4" collet chuck.  Features a front exhaust which. blows metal chips away from the workpiece.

Model 4110GLS Steel case grinder (Front Exhaust) shown with built-in 1/4" collet chuck. Tool runs between 18000RPM -22000RPM. (Specify speed when ordering.)

4111-GL Front Exhaust Die Grinder

 Industrial Benefits:

• Features a front exhaust that blows metal chips away from the workpiece.
• Guarded for use with type 1 grinding wheel applications.
• One-Piece motor case for a comfortable grip.
• Tool runs between 15000RPM -18000RPM. (Specify speed when ordering.)
• Hardened steel motor parts.
• Unitized motor provides easy maintenance.
  
• An optional collet chuck can be purchased for adapting this grinder for use with carbide burrs and other mounted points.
• Available in either an aluminum or steel housing.
• Rated for use with grinding wheel sizes 3" (75mm) , or 4" (100mm).

  Capacity:

• Guarded for use with type 1 grinding wheel applications.
• An optional collet chuck (HT-1010) can be purchased for adapting this grinder for use with carbide burrs and other mounted points.
• Rated for use with grinding wheel sizes 3" (75mm) , or 4" (100mm).
  Working Air Consumption: 25 CFM (11.8 L/s)
  Recommended working air pressure: 90 p.s.i.

Model 4111GLSK Steel case grinder with Front Exhaust and 4" guard. (with safety lock lever throttle) Features a front exhaust which. blows metal chips away from the workpiece.

Model 4111GLSK die grinder with a Front Exhaust. Available in either an aluminum or steel housing. Rated for use with grinding wheel sizes 3" (75mm) , or 4" (100mm).  An optional collet chuck can be purchased for adapting this grinder for use with carbide burrs and other mounted points.

4117GL Series Front Exhaust Erickson Style Collet Grinders

Industrial Benefits:

• Three piece Erickson collet can accommodate insert sizes ranging from 1/8", 1/4", 5/16", or 3/8".
• Tool runs between 18000RPM -22000RPM. (Specify speed when ordering.)
• Ships standard with a 1/4" collet insert. (Your choice of collet insert size when ordering).
• Features a front exhaust which. blows metal chips away from the work-piece.
• One-Piece motor case for a comfortable grip. Hardened steel motor parts. Unitized motor provides easy maintenance.
• An optional collet chuck can be purchased for adapting this grinder for use with carbide burrs and other mounted points.
• Available in either an aluminum or steel housing.

Model 4117GLSK shown with Front exhaust STEEL case  and Erickson collet for quick change of collet insert sizes.  Pictured with safety lockout lever throttle. (Available in an Aluminum or Steel case). Foruse with Burrs/Mounted Stones of shank size 1/8 inch, 1/4 inch, 5/16 inch, 3/8 inch. Tool runs between 18000RPM -22000RPM. (Specify speed when ordering.)

Model 4117GLK shown with Front exhaust ALUMINUM case  and an Erickson collet for quick change of collet insert sizes.  Pictured with safety lockout lever throttle. (Available in an Aluminum or Steel case)

4123G Series "Super Duty" side exhaust Die Grinder

 Industrial Benefits: 

• Combined rotor and spindle design provides a smooth yet ultra rugged and stable grinding    platform.
• An Erickson Style Collet utilizing quick user switching of collet insert sizes ranging from 1/8", 1/4", 5/16", 3/8".
• Tool runs between 18000RPM -22000RPM. (Specify speed when ordering.)
• The tool comes standard with a 1/4" collet insert. (other sizes available)
• Adjustable SIDE exhaust deflector.
• Unitized motor provides easy maintenance.
• Erickson style collet can accommodate various mounted accessories.
• Available in either an aluminum or steel housing.
  

4123GLSK die grinder features a "Super-heavy duty" Erickson style collet spindle. The Combined rotor and spindle of this tool provides an extremely stable platform for heavier duty grinding. This model features a standard  SIDE exhaust and  a Safety lockout lever throttle. For use with Burrs/Mounted Stones of shank size 1/8 inch, 1/4 inch, 5/16 inch or 3/8 inch. Features a thick spindle with heavier duty bearings.  

4123GLS "Super-heavy duty" Erickson style collet spindle. The Combined rotor and spindle of this tool provides a super strong platform for heavier duty industrial grinding applications. This model features a standard SIDE exhaust and standard lever thottle. The Erickson style collet allows fast changing of collet insert sizes. This tool is for use with Burrs/Mounted Stones of shank size 1/8 inch, 1/4 inch, 5/16 inch or 3/8 inch. (Pictured with standard lever throttle). 

4123G+6" Extended Length Spindle (plus 6 inches)

Industrial Benefits:

• Combined rotor and spindle design provides a smooth yet ultra rugged and stable grinding platform.
• Featuring a Erickson Style Collet utilizing quick user switching of collet insert sizes ranging from 1/8", 1/4", 5/16", 3/8".
• The tool comes standard with a 1/4" collet insert. (other sizes available)
• Tool runs between 18000RPM -22000RPM. (Specify speed when ordering.)
• Hardened steel motor parts.
• Adjustable SIDE exhaust deflector.
• Unitized motor provides easy maintenance.
• Erickson style collet can accommodate various mounted accessories.
• Available in either an aluminum or steel housing.

4123GLSK "Super-heavy duty" Erickson type spinde die grinder.  Standard side exhaust grinder with (plus 6" length spindle) shown with standard lever throttle. Tool is rated for Burrs/Mounted Stones of shank size 1/8 inch, 1/4 inch, 5/16 inch, 3/8 inch

Extended Spindle model 4123GLS+6""Super-heavy duty" Erickson type spinde die grinder.  This die grinder has a SIDE exhaust and a standard lever throttle. Pictured above with cone wheel attached. Tool is rated for Burrs/Mounted Stones of shank size 1/8 inch, 1/4 inch, 5/16 inch, 3/8 inch

4124GL Front Exhaust "Super Duty" Die Grinder

Industrial Benefits:

• A "FRONT" exhaust which. blows metal chips away while grinding.
• Super heavy-duty collet assembly built for extreme grinding applications.
• Combined rotor and spindle design provides a smooth yet ultra rugged tool platform.
• Featuring a Erickson Style Collet utilizing quick user switching of collet insert sizes ranging from 1/8", 1/4", 5/16", 3/8".
• The tool comes standard with a 1/4" collet insert. Specify the size you need when ordering. Hardened steel motor parts. Unitized motor provides easy maintenance. Erickson style collet can accommodate various mounted accessories. Available in either an aluminum or steel housing.

Model 4124GLS "Super-heavy" duty Erickson style collet die grinder (standard length spindle) featuring a "FRONT" exhaust steel case. This tool is rated for Burrs/Mounted Stones of shank size 1/8 inch, 1/4 inch, 5/16 inch, 3/8 inch

 Model 4124GLS+6" "Super-heavy" Extended Shaft Erickson style collet die grinder with a FRONT Exhaust. Featuring a Super strong extended 6"spindle. This tool is rated for Burrs/Mounted Stones of shank size 1/8 inch, 1/4 inch, 5/16 inch, 3/8 inch.  

49G Series Rear Exhaust Die Grinder

Industrial Benefits:

• The 49G Series grinder features an aluminum housing and a REAR exhaust.
• The rear exhaust directs oil and dirt away from the operator.
• Also features a three piece Erickson collet with your choice of a 1/8", 1/4", 5/16" or 3/8" insert. 
• Hardened steel motor parts.
• Unitized motor provides easy maintenance.

49GL "Rear" exhaust die grinder with Erickson style collet. (interchangeable collet insert sizes) (pictured with abrasive... sold separately)

4721GL Governed Speed Die Grinder Series

Industrial Benefits:

• A governor controlled grinder that maintains peak power at a lower rpm. (8000-12000RPM)
• Featuring a Erickson Style Collet utilizing quick user switching of collet insert sizes ranging from 1/8", 1/4", 5/16", 3/8".(Specify when ordering)
• The tool comes standard with a 1/4" collet assembly.
• Hardened steel motor parts. Adjustable SIDE exhaust deflector.
• Unitized motor provides easy maintenance.
• Available in either an aluminum or steel housing.

Henrytools Model 4721-GLSK  governed speed SIDE exhaust die grinder (8000-12000RPM).   Pictured with a STEEL case and a safety lockout lever throttle.  Features an Erickson style collet for quick collet insert size changes.

Henrytools Model 4721-GLS governed speed SIDE exhaust die grinder.  Slower speeds without losing power. Features an Erickson style collet for quick collet insert size changes. This tool is rated for Burrs/Mounted Stones of shank size 1/8 inch, 1/4 inch, 5/16 inch and 3/8 inch.

47GL Governed Speed (Side Exhaust) Die Grinder Series

Industrial Benefits:

• An ultra-versatile governor controlled grinder.
• A governor controlled grinder that maintains peak power at a lower rpm. (8000-12000RPM)
• Featuring a 3/8-24 spindle that can accommodate collets and grinding wheels.
• The tool comes standard with a 1/4" collet assembly.
• An optional guard can convert this grinder to use type 1 or 27 grinding wheels. Hardened steel motor parts.
• Adjustable SIDE exhaust deflector.
• Unitized motor provides easy maintenance.
• Available in either an aluminum or steel housing.

Model 47GL governed slower speed grinder (8000RPM-12000RPM).  (specify speed when ordering) .  (Pictured without wheel guard for clarity). Shown with 3/8-24 threaded spindle and wheel washers. Uses standard Type 27 cutoff wheels. 

Model 47GLSK governed slower speed grinder pictured with standard HT-1010 collet installed.  Great for lower speed buffing and deburring. (Shown with wire wheel)

4710G Front Exhaust Governed Speed Die Grinder

Industrial Benefits:

• A governor controlled (slower speed) grinder that maintains peak power at a lower rpm.
• (8000RPM-12000RPM)
• "FRONT" exhaust to direct grinding debris away from operator and the workpiece.
• Featuring a Erickson Style Collet utilizing quick user switching of collet insert sizes ranging from 1/8", 1/4", 5/16", 3/8". (Specify when ordering) .
• The tool ships standard with a 1/4" collet insert.
• Adjustable side exhaust deflector.
• Available in either an aluminum or steel housing.

Model 4710GLS Governed speed die grinder with Steel "FRONT" exhaust. . Slower governed speed grinder (8000RPM-12000RPM)with an Erickson Style collet. Collet insert sizes ranging from 1/8", 1/4", 5/16", 3/8". (Specify when ordering) .

405GE / 400GE Side Exhaust Series Die Grinder (1.2 H.P.)

Heavy Duty Industrial Benefits: 

• SIDE exhaust.
• 1.2 hp (900 W) ; 18,000-20,000 rpm free speed.
• Highest durability in demanding grinding applications with up to 2000 hrs maintenance intervals.
• Choice of either a rugged steel or lightweight aluminum housing.   
• Safety lockout lever or standard lever with a (SIDE) exhaust.
• 1/4" or 3/8"collet insert for this Erickson type collet grinder.
• This is a high productivity industrial die grinder.
• Made in America.

Model 405GE  Die Grinder (Top View)

Model 405GE / 400GE  Series (SIDE) exhaust die grinder with a powerful 1.2 Horsepower motor.  Shown with a steel case and lockout safety lever throttle. This tool is rated for Burrs/Mounted Stones of shank size 1/8 inch, 1/4 inch, 5/16 inch, 3/8 inch

Model 405GE / 400GE (Side) exhaust die grinder with a powerful 1.2 Horsepower motor. Shown with an aluminum case and standard  lever throttle.

405GER / 400GER Rear Exhaust Series Grinders (1.2 H.P.)   

Heavy Duty Industrial Benefits:

• REAR exhaust die grinder for Industrial High productivity.
• High durability in demanding grinding applications with up to 2000 hrs maintenance intervals.
• Choice of either a rugged steel or lightweight aluminum housing.
• Safety lockout lever or standard lever with a (REAR) exhaust. 1/4" or 3/8"collet insert for this Erickson type collet grinder.
• 1.2 hp (900 W) ; 18,000-20,000 rpm free speed.

Model 405GER / 400GER (REAR) exhaust die grinder with a powerful 1.2 Horsepower motor. Shown with a steel case and lockout safety lever throttle. This tool is rated for Burrs/Mounted Stones of shank size 1/8 inch, 1/4 inch, 5/16 inch, 3/8 inch

Model 405GER /400GER (REAR)  Exhaust die grinder with a Steel case and safety lock lever throttle.  (shown with ball type carbide burr). 

405HGE / 400HGE Side Exhaust Series Die Grinder (1.2 H.P.)

Heavy Duty Industrial Benefits: 

• SIDE exhaust.
• DOUBLE FRONT ROW BEARINGS for higher durability and stability in demanding grinding applications.
• Up to 2000 hrs maintenance intervals.
• Choice of either a rugged steel or lightweight aluminum housing.   
• Safety lockout lever or standard lever with a (SIDE) exhaust.
• 1/4" or 3/8"collet insert for this Erickson type collet grinder.
• 1.2 hp (900 W) ; 18,000-20,000 rpm free speed.

Model 405HGE / 400HGE (Side) exhaust die grinder with DOUBLE FRONT ROW BEARINGS  which provides for an ultra smooth and stable platform for grinding.   An ultra powerful (1.2 Horsepower) motor. Shown with a steel case and lockout safety lever throttle. (Flap wheel not included)

Model 405HGE / 400HGE  (Side) exhaust die grinder with DOUBLE FRONT ROW BEARINGS and a powerful 1.2 Horsepower motor.  Picutured with a steel case and lockout safety lever throttle.   Rated for use with Burrs/Mounted Stones of shank size 1/4" or 3/8"collet insert for this Erickson type collet grinder.

405HGERS / 400HGERS REAR Exhaust Series Die Grinder (1.2 H.P.)

Heavy Duty Industrial Benefits:

• REAR exhaust .
• DOUBLE FRONT ROW BEARINGS for higher durability and ultra stability in demanding grinding applications.
• 1.2 hp (900 W) ; 18,000-20,000 rpm free speed.
• Up to 2000 hrs maintenance intervals.
• Choice of either a rugged steel or lightweight aluminum housing.
• Safety lockout lever or standard lever with a (REAR) exhaust.
• 1/4" or 3/8"collet insert for this Erickson type collet

Model 405HGER  /  400HGER (REAR) exhaust die grinder with DOUBLE FRONT ROW BEARINGS provides an ultra smooth and stable platform for grinding.   This tool incorporates a very powerful 1.2 Horsepower motor. Shown with a steel case and lockout safety lever throttle. Tool is rated for Burrs/Mounted Stones of shank size 1/8 inch, 1/4 inch, 5/16 inch and 3/8 inch

Model 405HGER (REAR) exhaust die grinder with DOUBLE FRONT ROW BEARINGS. (shown with a safety lockout lever throttle and carbide burr installed.) (carbide burr not included)