Technical data:
External ⌀:12.4 mm
Coating:TiN
Countersink tip angle:90 degrees
Tool material:HSS
Number of cutting edges Z:3
Standard:DIN 335 C
Shank:Plain shank with h9
Through-coolant:no
smallest countersink ⌀ for holes from:2.8 mm
Overall length L:56 mm
Shank ⌀ Ds:8 mm
for countersunk screws DIN 7991:M6
Feed f in steel < 500xa0N/mm2:0.12 mm rev. Shank tolerance:h9 Colour ring:green Type of product:Stepped drill and countersink Version: All countersinks have 3 cutting edges, radially relieved. Flutes are ground from solid.Economy version, improved performance due to coating. Application: High precision countersinks for chatter-free countersinking.