David Union M4005 Collet Adapter Set (2-piece)

This collet set allows you to mount standard accessories with 2.35 mm and 3.0 mm shank diameters – such as diamond burrs, engraving tips, and mini grinding tools – onto your rotary grinder. Ensures stability and precision for fine detail work, sprue lines, and hard-to-reach areas.

Specifications

• Compatible Shank Sizes: 2.35mm and 3.00mm
• Outer Shank Diameter: 4.9mm
• Compatibility: MADWORKS M4 Linear Pen Grinder (Expected availability from September 2026) / David Union D400 Pen Grinder
• Origin: Made in Taiwan

Scope of Delivery

• 1x 2.35mm Collet Adapter
• 1x 3.00mm Collet Adapter