Pencil Grinders

Corded pencil grinders (die grinders) offer high RPMs and slender profiles for detail grinding, deburring and polishing.  They excel at working in confined areas on metal, stone or composites.  Durable bearings and collets allow use with a variety of mounted... Read More

Corded pencil grinders (die grinders) offer high RPMs and slender profiles for detail grinding, deburring and polishing.  They excel at working in confined areas on metal, stone or composites.  Durable bearings and collets allow use with a variety of mounted points and burrs.

What is a pencil grinder used for?

Pencil grinders are compact, high-speed rotary tools used for:

• Deburring and polishing intricate metal parts

• Grinding in tight spaces where larger tools won’t reach

• Engraving, shaping, and tool sharpening

• Cleaning weld seams and smoothing castings
  They’re ideal for precision work in fabrication, die-making, aerospace, and automotive applications.

What kind of bits and attachments can I use with a pencil grinder?

Pencil grinders typically accept:

• Mounted points and carbide burrs (usually 1/8″ or 3 mm shank size)

• Small grinding stones, abrasive wheels, and felt polishing bits

• Cut-off wheels (with proper guards and attachments)
  Ensure the accessory’s RPM rating matches the tool speed—as pencil grinders often run at 20,000 to 60,000 RPM.

What features should I look for in a corded pencil grinder?

Important features include:

• High RPM and smooth operation for clean, controlled cuts

• Collet size compatibility (commonly 3 mm or 6 mm)

• Ergonomic, slim body for long-term precision handling

• Low vibration and noise levels

• Flexible cable or long power lead for better reach
  Some models may also support foot pedal control for more delicate work.