Description
Countersinks radially relief ground.
Chip flutes are ground from solid up to size 31.
Chip angle varies with the countersink diameter for optimum chip formation.
Countersink point and circumference are relief ground and cut easily.
Economy countersink version.

Product Data
Product type: Countersink
Countersink angle: 90deg
Tool material: HSS
DIN: 335 D
Shank type: Morse taper
Number of cutting edges: 3
External Dia. Dc: 37 mm
Smallest countersink Dia. for holes from: 4.8 mm
L: 118 mm
Morse taper: MT 2
For countersunk screws ISO 2009, 2010, 7046, 7047: M20
For countersunk screws DIN 7991: M20
Feed (f), Steel <500 N: 0.25 mm/rev

Cutting Data
Alu: 33
Steel <500 N: 28
Steel <750 N: 27
Steel <900 N: 27

Application
For chatter-free countersinking and deburring.

Note
For countersink bits with shank 6.3 mm (1/4 inch), see product group 67.