- 100% brand new and high quality - Material:CR12MOV - Shank Shape: Triangle - QUICKLY GRIP BOLTS: Deburring external chamfer tool can quickly grind the tip of compressed or rusty bolt to tapered edge so that the nut can be quickly tightened in place without replacing expensive and hard-to-find fasteners, saving a lot of money, especially when handling fixed bolts that cannot be disassembled. - SAFELY EASY TO WORKING WITH DRILL BIT: The operation is simple, using the lowest speed on the drill bit, and then slightly applying pressure to remove the burr of bolt. safe and pious design means no cuts, no sparks, no burns. Effective on Stainless Steel, Hardened Steel, Mild Steel, Copper, Brass, Aluminum, Fiberglass, Wood, Plastic, no matter it is with or without screw thread. Besides, it also can be taken as bottle opener. MATERIAL: Made of extremely hard stainless steel with three shaving teeth, let it has the feature of high strength and hardness for durability. Color: gold, black, yellow