2Pcs Deburring External Chamfer Tool Drill Bit 12mm-22mm Bolt Threads Repair

Specification:
Material: HSS (high-speed steel)
Colour: Black
Fits size(approx.):12mm -22mm
Size(approx.): inner ring diameter 22mm/0.87", outer ring diameter 28mm/1.10"
Size: specific size as the picture shown
Interior ring diameter: 22mm
Exterior ring diameter: 28mm

Characteristic:
[Easy to Operate]: Simple operation, using the lowest speed on the drill bit, and then slightly applying pressure to remove the burr.
[Wide Application]: High strength, high hardness. Suitable for stainless Steel, Hardened Steel, Mild Steel, Low Carbon Steel, Copper, Brass, Aluminum, Fiberglass, Wood, and Plastic, no matter whether it is with or without screw thread.

The package includes:
2 x Deburring External Deburring Chamfer Tool