Feature:
1.High speed steel.made of CR12MOV steel, high strength and hardness.
2.Simple operation, using the lowest speed on the drill bit, and then slightly applying pressure to remove the burr.
3.Quickly repairs damaged bolts and tightens the nuts in place;simplifies the repair process, eliminates the need to replace expensive or hard-to-find hardware.
4.Effective on Stainless Steel, Hardened Steel, Mild Steel, Copper, Brass, Aluminum, Fiberglass, Wood, Plastic, no matter it is with or without screw thread.
5.Brilliant also when cutting threaded rods or bolts to length. Makes getting things started so much easier.

Specification:
Color: silver
Material: HSS (CR12MOV)
Fits size(approx.):8-32 bolts (.164) up to 3/4″-10 (.750) - (4mm -19mm)
Size(approx.):inner ring diameter 22mm/0.87",outer ring diameter 28mm/1.10"
Total Length:50mm/19.7"