Description: _x000D_ Carbide rotary burrs are used with high-speed electric grinders or pneumatic tools, which are widely used in industrial sectors such as machinery, automobiles, ships, chemicals, and crafts. Carbide rotary burrs can be used to process machine cast iron, cast steel, carbon steel, alloy steel, stainless steel, hardened steel, copper and aluminum. _x000D_ _x000D_ Feature: _x000D_ Great efficiency, high degree of finish, long service life and high accuracy. _x000D_ Easy to use, safe, reliable, economical and labor-saving. _x000D_ Work with high-speed electric grinders or pneumatic tools. _x000D_ Can process all kinds of metal(such as iron, steel, copper, aluminum) and non-metal (such as marble, jade, bone). _x000D_ Widely used in machinery, automobile, ships, chemical, craft and more. _x000D_ _x000D_ Specifications: _x000D_ Material: YG8 Tungsten Steel _x000D_ Head Shape: spherical, cylinder, torch, cylindrical ball _x000D_ Shank Diameter: 1/4in _x000D_ Overall Length: Shown as picture _x000D_ Grinding Head Size: Shown as picture _x000D_ Weight: Approx. 297g _x000D_ _x000D_ Package Includes: _x000D_ 2 x Spherical Rotary Burr _x000D_ 2 x Cylinder Rotary Burr _x000D_ 2 x Torch Rotary Burr _x000D_ 2 x Cylindrical Ball Rotary Burr _x000D_ _x000D_ Note: _x000D_ Please allow 1-3mm error due to the manual measurement. Thanks for your understanding.