• 7mm diameter
• 70 grit
• 3mm shank (1/8")

These Cone-shaped Diamond Sintered Burrs, sometimes referred to as Diamond Sintered Carving Points, are perfect for engraving, carving and sculpting in glass, stone, ceramics and hardwood, plus grinding work in Lapidary and jewellery.

Due to the diamonds being sintered, they are extremely durable. Maintain their efficiency by occasionally cleaning the sintered burs with a dressing stone or aluminium oxide stick, using water, letting the drill do the work and applying little pressure.

This is for use with all rotary drills, hand-held hobby drills, pendant drills, micro motors, drill press, and flex shafts.