5-pack 1/4" Steel Drill Bit Set Cutting Tools for Woodworking Knife Wood Carving Product FeaturesHigh product processing quality, high finish, can process out a various of high-precision mold cavity Heavy duty rotary rasp set for power drills, air tools, and die grinders. Use fore grinding, polishing, carving, and burnishing wood surface The most commonly-used rasp configurations and styles: 1/4" shanks to fit most electric and cordless drills Carbon steel High-carbon steel tempered and hardened for long-life cutting power, makes all you are grinding needs easier and more convenient Steel Rotary Burr made from Carbon steel High-carbon steel tempered and hardened for long-life, use for grinding, polishing, carving, burnishing wood surface Product Specification:Steel Rotary Burr Material: 45 steelSteel Rotary Burr Color: BlackSteel Rotary Burr Size: Shank diameter: 1/4"Steel Rotary Burr Weight: 90g Package Includes:5 x 1/4" Steel Drill Bit Set Cutting Tools Before you place an order, please provide me with English information to facilitate our delivery and logistics