HIGH-SPEED STEEL -- The counterbore drill bit is made of HSS-AL super-hard high-speed steel, hardness: HRC65~68°, with high toughness, abrasion , and high-speed cutting for the high hardness
HIGH ALIGNMENT PRECISION -- The counterbore drill bit set cuts the hole and bottom hole with high alignment precision. Reduce the time of changing tools, improve the efficiency of machine actuator movement, and save tool-making time
PROFESSIONAL TOOL -- Mainly used to cut holes that allow bolts or screw heads to be screwed into. The hexagonal counterbore drill bit can be processed directly or finely processed to the heat treatment tool
MILLING CUTTER SIZE -- Boot x Blade Diameter x Shank Diameter x Full Length: M3=3.2 x 5.9 x 6 x 45mm, M4=4.2 x 7.4 x 6 x 48mm ,M5=5.2 x 8.9 x 6 x 51mm, M6=6.2 x 10.4 x 8 x 58mm, M8=8.2 x 13.4 x 12 x 67mm
WIDE APPLICATION -- This counterbore drilling with a limit can be processed directly or finely processed to the heat treatment. Suitable for grinding copper, aluminum, steel, cast iron, etc., usually used for assembling on a milling machine
Description
Specifications:
Material: HSS-AL super-hard high speed steel
Hardness: HRC65~68°
Size:(Boot*Blade Diameter*Shank Diameter*Full Length)
M3=3.2*5.9*6*45mm
M4=4.2*7.4*6*48mm
M5=5.2*8.9*6*51mm
M6=6.2*10.4*8*58mm
M8=8.2*13.4*10*67mm
Weight: 128g(approx.)
Package Includes:
1 Set(5pcs) x Countersink Mill Cutters
Note:
1. Please allow 1-2mm error due to manual measurement. Thanks for your understanding.
2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.