Hanboost 30pc Diamond Grinding Bit for Rotary Tool

The assorted grits from 120 to 150 burrs are great for jewelry making and repairing Diamond Drill Bits Material: Alloy, coated with tough diamond particle at the head; Shank：Φ2.35mm/45mm Length Assorted shapes and sizes include: ball, cone, cylinder, needle point, and tapered;30 Assorted diamond burs will provide you with a variety of standard forming options Highly recommended for crafts, hobbies, home repair, jewelry, lapidary use, modeling, and so much more Compatible with most rotary tools, can engrave on a wide range of materials including wood, ABS, stone, PVC, plastics, etc.