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HOFFMANN – 122251 1.8

Description

GARANT Solid Carbide Jobber Drill 1.8 mm GARANT, HOFFMANN

Technical specification

Technical Data

Shank ⌀ D_s	1.8 mm
Shank tolerance	h7
Standard	DIN 338
Number of cutting edges Z	2
Overall length L	46 mm
Feed f in steel < 1100 N/mm²	0.03 mm/rev.`
Tolerance nominal ⌀	h7
Nominal ⌀ D_C	1.8 mm
Flute length L_c	22 mm
Recommended maximum drilling depth L₂	19.3 mm
Coating	TiAIN
Tool material	Solid carbide
Type	N
Point Angle	118°
Helix angle	30°
Shank	Parallel shank to h7
Through-coolant	No
Colour ring	without
Type of product	Jobber drill

User Data

	Suitability	V₂	ISO code
Alu plastics	Suitable only under restricted conditions	260 m/min	N
Aluminum (short chipping)	Suitable	180 m/min	N
Alu > 10% Si	Suitable	180 mm/min	N
Steel < 500 N/mm²	suitable	90 m/min	P
Steel < 750 N/mm²	suitable	90 m/min	P
Steel < 900 N/mm²	suitable	80 m/min	P
Steel < 1100 N/mm²	suitable	60 m/min	P
Steel < 1400 N/mm²	suitable	35 m/min	P
INOX < 900 N/mm²	suitable	35 m/min	M
INOX > 900 N/mm²	suitable	25 m/min	M
Ti > 850 N/mm²	suitable	25 m/min	S
GG(G)	suitable	90 m/min	K
CuZn	Suitable	180 m/min	N
Uni	Suitable
Oil	suitable
Wet maximum	Suitable
Dry	Suitable only under restricted conditions

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