20PCS Diamond Grinder Bits 120 Grit 1/8 Shank Dremel Rotary Burr Set

Small grinding, carving, and cleanup jobs need the right bit shape when a regular sanding drum or file cannot reach the detail area. This 20PCS 120 grit diamond grinder bit set gives you assorted rotary tool burrs with 1/8 in shanks for detail grinding, engraving, carving, mold work, weld spatter cleaning, trimming, and surface touch-up work.

Assorted Bits For Detail Grinding Work

• 20-Piece Diamond Bit Set: Includes 20 assorted diamond grinder bits for rotary tool grinding, carving, engraving, deburring, and small detail work.
• 120 Grit Abrasive Surface: Diamond abrasive coating provides controlled grinding performance for detailed shaping and surface cleanup.
• 1/8 Inch Shank: Designed for rotary tools that accept 1/8 in shank accessories. Please check your tool collet size before ordering.
• Mixed Head Shapes: Assorted cylinder, rounded, ball, cone, and pointed-style heads help reach different curves, edges, grooves, and small work areas.
• Multi-Material Use: Useful for metal, non-metal materials, glass, ceramic, stone, wood, mold processing, carving, trimming, and weld spatter cleanup.
• Compact Rotary Tool Accessories: Good for hobby projects, workshop repairs, engraving, model work, small surface prep, and precision grinding tasks.

Good For Grinding, Carving, And Cleanup

Use these diamond grinding burr bits for mold grinding and processing, cleaning small weld spatter areas, trimming edges, carving patterns, engraving detail lines, shaping small parts, and smoothing hard-to-reach surfaces. They are best for controlled detail work instead of heavy material removal.

Fit And Use Notes

These bits are made for rotary tools that accept 1/8 in shank accessories, including many Dremel-style rotary tools. Tool compatibility depends on your collet size and tool speed range. Start with light pressure and let the abrasive surface do the work to help extend bit life.

Important Material Note

This listing is for 120 grit diamond grinder bits. The supplier text may mention carbide, but the product title and images indicate diamond abrasive grinding bits. Do not use these as drill bits for making holes unless the application is suitable for your material and tool setup.

Product Specifications

Product: 120 Grit Diamond Grinder Bit Set
Type: Diamond Burr Bits / Rotary Tool Grinding Bits
Quantity: 20 Pieces
Shank Size: 1/8 in
Grit: 120 Grit
Material: Diamond Abrasive Surface With Metal Shank
Bit Shapes: Assorted Cylinder, Ball, Cone, Rounded, Pointed Styles
Use: Grinding, Carving, Engraving, Deburring, Mold Processing, Weld Spatter Cleaning, Trimming, Detail Work
Compatible Tools: Rotary Tools Accepting 1/8 in Shank Accessories
Power Source: Not Required

Package Includes

• 20 x 120 Grit Diamond Grinder Bits

A practical 20-piece rotary bit set for small grinding, shaping, engraving, and cleanup jobs where assorted tip shapes make the work easier.