Materials: Made of premium aluminum oxide and Metal. durable and wear resistance.
Arbor: 6mm (1/4 inch) shank fit for die grinder, drill press and other rotary tool.
Application: Used for stone, agate,jade,glass, metal and non metal grinding,polishing,buffing.
WARM PROMPT:
Rotary grinding stone bits can be used wet or day !!!
Recommended to use with water to prevent dust !!!
Package includes: 6 pieces 1/4 inch shank 30 mm bullet shape rotary grinding stones.