Description:
Countersink end mill cutter is a special made tool mainly used to cut such a hole allows the head of a bolt or screw. This kind of cutter cut hole and bottom hole with high alignment precision, Due to its high production efficiency, it is commonly used for machining industry.

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.