3-Flute SE 90° MACHC'SINK HS - 1 X 1/2 X 4-3/8

1" body 90° countersink, 3 flutes.

A countersink cuts the tapered seat that lets a flat-head screw finish flush with the surface. This one has a 1" cutting body on a 1/2" shank, 4-3/8" overall, ground to a 90° included angle.

90° is the standard included angle for metric flat-head screws, and the common choice for chamfering a hole before tapping.

Specifications

• Body size (cutting diameter): 1"
• Shank diameter: 1/2"
• Overall length (OAL): 4-3/8"
• Included angle: 90°
• Flutes: 3
• Style: Machine style
• Tool material: High-Speed Steel (HSS)
• Series: SHCSM90
• Item number: SHCSM90-32