Description:
30pcs Diamond Burr Glass Drill Bits For Engraving Rotary Tool Set 3mm Shanks

Features:
New one box set of 30 pieces diamond coated burrs/pointed heads in box
They will fit your hand drill for drilling glass， shells， tile and stone.
Overall length: 45mm
Shank diameter : 3mm
Suitable for glass， marble， rock or jewelry， etc.

Package Included:
1x Set(30pcs) Diamond Burrs