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

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Specification:Material: HSS (high-speed steel)Colour: BlackFits size(approx.):12mm -22mmSize(approx.): inner ring diameter 22mm/0.87", outer ring diameter 28mm/1.10"Size: specific size as the picture shownInterior ring diameter: 22mmExterior 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 Show more