HSS 82 Degree 5 Flute Countersink Drill Bit Set Taper Hole Cutter Deburring Chamfering Trimmer Tool 1/4" 3/8" 1/2" 5/8" 3/4"

[Material]: High-speed steel 4341 [Surface treatment]: Roasted yellow Nitriding [Size]: 1/4 ", 3/8", 1/2 ", 5/8", 3/4 " [Description]: Chamfering tool is the best alternative to traditional bore chamfer, chamfer milling mold shape, characterized by high precision and low roughness of the machined surface, strong applicability, widely used for high and low level of each class processing equipment. [Features]: 1. Use for aluminum, iron panels, PV panels Soft Metal, wood, rubber, plastic and Other Machinable Materials, inverted taper. 2. During use, five cutting edges can better chip evacuation, the cutting edges is not easy to blunt! 3. Use for home and industrial.