BILZ piloted counterbore 180 degrees w. detachable pilot HSS T=4 size 4 23.0 mm

Name: BILZ piloted counterbore 180 degrees w. detachable pilot HSS T=4 size 4 23.0 mm
Brand: HERMANN BILZ
SKU: 11540230

Brand: HERMANN BILZ

Length: 61 mm

Art.-no. 11540230

Manufacturer article no. A 230401

All versions

Specification

Application

For producing 180° counterbores in connection with interchangeable pilots in steel, (stainless steel), non-ferrous metals, (cast) and special alloy material groups up to a strength of 1000 N/mm² in single part production.

Execution

profile-ground piloted counterbore with removable pilot with twisted cutting edge, with three cutting edges for diameters up to 17.5 mm, or four cutting edges as from 18.0 mm diameter

Advantage

very positive chip angle ensures a very soft cut in long-chipping materials up to 1000 N/mm2 and minimises the cutting forces
wide chip chambers for smooth chip removal
innovative cutting geometry provides excellent cutting performance and good finish quality

Technical information


Brand	HERMANN BILZ
Manufacturer Part Number	A 230401
Construction size	4
Spot-facer diameter (Dk8)	23 mm
Hole diameter of mount (D1)	6 mm
Manufactured part diameter (D2)	7.7 mm
Thread dimension (G)	M8
Projecting length (E)	38 mm
Length (L)	61 mm
Number of cutting edges	4 PCS
Cutting material	HSS
Harmonized System Code	82079091
Gross Weight	0.117 kg

Material groups for cutting values	Description regarding DIN	Strength Class [N/mm²]	Material No.	Vc [m/min]	f [mm/r] with diameter	Suitability
1.00 Steels
1.01 Free machining steel	9 S 20	< 900	1.0711	25-32	0.35-0.5	⚫
1.02 Structural steel	ST 37-2	<500	1.0037	25-32	0.35-0.5	⚫
1.03 Structural steel	ST 60-2	> 500	1.7735	25-30	0.35-0.5	⚫
1.04 Heat-treated steel	42 CrMo 4	<1000	1.7225	20-30	0.35-0.45	⚫
1.05 Cast iron	GS-45	<1000	1.0446	18-22	0.35-0.45	⚫
1.06 Case-hardened steel	16 MnCr 5	<1200	1.7131	18-25	0.32-0.45	⚫
1.07 Ferritic/martensitic stainless steel	X 10 Cr 13	<1100	1.4006	12-16	0.32-0.45	⚪
1.08 Heat-treated steel	43 CrMo 4	>1000	1.3563	12-15	0.32-0.45	⚪
1.09 Nitriding steel	31 CrMoV 9	<1300	1.8519	8-15	0.32-0.45	⚪
1.10 Tool steel	X 38 CrMoV 5 1	<1300	1.2343	10-17	0.32-0.45	⚪
2.00 Stainless steels
2.01 Austenitic stainless steel	G-X 2 CrNiMo 18 15	<1100	1.3953	8-12	0.32-0.45	⚪
3.00 Non-ferrous metals
3.01 Long-chipping aluminium	AI99.9	<500	3.0305	70-100	0.42-0.53	⚫
3.02 Short-chipping aluminium	G-AISi12	<500	3.2581	40-80	0.42-0.53	⚫
3.03 Copper alloy bronze, long-chipping	CuSn4	<1200	2.1016	20-35	0.4-0.5	⚫
3.04 Copper alloy bronze, short-chipping	CuNi12Zn24	<850	2.0730	20-35	0.4-0.5	⚫
3.05 Copper alloy brass, long-chipping	Cu Zn 20	<600	2.0250	30-50	0.42-0.53	⚫
3.07 Thermoplastic	Cu Zn 39 Pb 3	<600	2.0381	30-40	0.42-0.53	⚫
3.07 Thermoplastic	PVC, Acrylglas	<100		30-40	0.42-0.53
3.08 Duroplast	Bakelit, Melamin	<150		30-40	0.42-0.53
3.09 Fibre-reinforced plastics	CFK, GFK	<1500		30-40	0.42-0.53
3.10 Graphite	C8000	<60		-	-
3.11 Composite materials				-	-
4.00 Cast metal
4.01 Grey cast iron	GG10	<260 HB	0.6010	16-25	0.32-0.45	⚪
4.02 Spheroidal graphite iron	GGG 40	<310 HB	0.7040	16-25	0.32-0.45	⚪
4.03 Ductile iron	GTW-55	<280 HB	0.8055	16-25	0.32-0.45	⚪
5.00 Special alloys
5.01 Titanium alloy	TiAI5Sn2,5	<1200	3.7115	8-15	0.32-0.45	⚪
5.02 Nickel-based alloy	NiCr21Mo	<1400	2.4858	-	-
5.03 Super alloys	X45CrSi 9 3	<1400	1.4718	-	-