Technical data:
External ⌀:63 mm
Coating:uncoated
Countersink tip angle:90 degrees
Tool material:HSS
Number of cutting edges Z:3
Standard:DIN 335 D
Shank:Morse taper
Through-coolant:no
smallest countersink ⌀ for holes from:16 mm
Overall length L:180 mm
Morse taper MT:4
Feed f in steel < 500xa0N/mm2:0.35 mm rev. Colour ring:without Pre-drill ⌀:16 mm Type of product:Stepped drill and countersink Version: Countersinks radially relief ground. Chip flutes are ground from solid up to size 31. Chip angle varies with the countersink ⌀ for optimum chip formation. Countersink point and circumference are relief ground and cut easily.Economy countersink version. Note: For countersink bits with shank 6.3 mm (1/4 inch) see Group 67.For suitable reducing adapters for tools with MT shanks see No. 343000-343530.