Usage Tips:[Revolutionize Your Repairs with Ease]: Say goodbye to tedious bolt repairs! Our deburring external chamfering tool is a game-changer, effortlessly removing burrs and restoring bolts without any sparks or burns. With compatibility for tube sizes ranging from 3mm to 20mm, it's the must-have tool for every DIY enthusiast. [Safety First, Repairs Made Simple]: Your safety is our priority! Our deburring chamfering tool simplifies bolt repairs. Easily attach it to your power drill, apply a gentle touch, and watch as it expertly removes burrs, eliminating the need for costly hardware replacements. Repairing has never been safer or more straightforward. [User-Friendly Innovation]: We've designed our tool with you in mind. The 1/4 inch hex shank and quick-release design make it a breeze to attach to your favorite drills, including Lithium-ion drills, hand drills, and table drills. Operate at 0-400 RPMs for optimal performance, putting the power in your hands. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:black+blue Material:steel Package Contents: 2 x Deburring External Chamfer Tool Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.