Technical data:
External ⌀:40 mm
Coating:uncoated
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:10 mm
Overall length L:75 mm
Shank ⌀ Ds:12 mm
Feed f in steel < 500xa0N/mm2:0.25 mm rev. Shank tolerance:h9 Colour ring:without Type of product:Stepped drill and countersink Version: All countersinks have 3 cutting edges, radially relieved. Flutes are ground from solid.High-precision countersink, produced with tight manufacturing tolerances similar to DIN 335-C. Application: High precision countersinks for chatter-free countersinking.