Highlight [Industrial Tungsten Steel Material] This deburring external chamfer tool is made of hard stainless steel with high strength and hardness for durability and rust resistance. 3 tungsten steel cutting blades have strong cutting and repairing capabilities for cleaner and more effective burr removal. [Efficient to Remove Burr] Our hex shank remove burr tool is safe and easy to shave the outer edges of screws flat. Just attach it to the drill bit and gently press on the screw head. It simplifies the repair process and ne need to use hard-to-find hardware. [Quick Repair Damaged Screws] Our thread burr remover tool is quick to repair damaged bolts and tighten nuts. It is easy to repair screws, saving time and energy. [Easy to Install] This tool adopts precision industrial design and more refined production technology, easy to install and suitable for all types of drilling rigs. [Widely Uses] This screw deburring chamfering drill bit is widely used for various materials, like stainless steel, hard steel, mild steel, aluminum, copper, fiberglass, wood, brass, plastic. Detailed Product Name: Deburring External Chamfer Tool Material: Tungsten Steel Color: Black Specifications: 5-25mm (large) / 3-20mm (small) Inner diameter of feed port: 28mm/23mm Outer diameter of feed port: 33mm/29mm Hexagonal handle diameter: 6.35mm Shank end length: 42mm/37mm Speaker oblique length: 30mm/28.5mm Chamfer diameter range: 5-25mm / 3-20mm Compatible equipment models: lithium electric drill, hand drill, bench drill, etc. Applicable processing materials: stainless steel, iron, copper, carbon steel, aluminum, plastic, etc. Notes: 1.There may be slight differences between the picture and the actual color of the commodity. We will try our best to show you the exact color. 2.Please allow slight dimension difference due to manual measurement. Parts List: 2Deburring External Chamfer Tool