Twist drills with coolant duct, flute length DIN 1870

Catalog-No.

374

Connection code machine side: Morse taper

Web thinning ≥ Ø 11.000 • for drilling through drill bushes • axial coolant supply through morse taper • relieved cone • increased wear resistance • Co-alloyed high speed steel

P	M	K	N	S	H

ISO code

P	Steel, high-alloyed steel
M	Stainless steel
K	Grey cast iron, spher, graphite/mall. cast iron
N	Aluminium and other non-ferrous metals
S	Special, super and titanium alloys
H	Hardened steel and chilled cast iron

On the following programme pages you will find for every tool recommendations regarding suitability for the application groups and details of max. tensile strength and harness:
optimal suitability
limited suitability

cast steel, grey cast iron • stainless/acid-/heat-resistant steels • tensile strength up to 1300 N/mm² • tensile and high tensile steels

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