Twist drills with coolant duct, flute length DIN 1870

Catalog-No.

375

Connection code machine side: Morse taper

Web thinning ≥ Ø 11.000 • relieved cone • radial coolant supply via Guhring coolant rings • Co-alloyed high speed steel • increased wear resistance • for drilling through drill bushes

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

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

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