Round sintered carving bur Grit:325# This motor does NOT include

This motor does NOT include the speed controller

allowing for easier drilling and longer bit life

Maximum torque: 16 oz

or occasional use — rather than large industrial-scale glasswork

Round sintered carving bur Grit:325# This motor does NOT includeThese professional grade sintered carving burs are suitable for shaping and carving a wide range of minerals. They are available in different shapes, sizes and grits so you can choose the best burs for your project. Sintering produces a uniform matrix of diamond crystals embedded in a strong, durable binder Sintered burs will last 5 to 10 times longer than diamond plated burs Sintered burs will last up to 100 times longer than various types of silicon