ISO 8977 C

Cutting bushes with start hole
ISO 8977 C

Material: HSS

Execution:
hardened and tempered, ground to tolerance inside and outside, with lead-in chamfer.

Hardness: HRC 62 ±2

Ordering example for a cutting bush with start hole, type A with outside diameter D = 8 mm and overall length = 20 mm:
Cutting bush with start hole ISO 8977 A 8,0 x 20

d	D n5	d1 max	L +0,5	l	Euros ea.	L +0,5	Euros ea.	L +0,5	Euros ea.	L +0,5	Euros ea.	L +0,5	Euros ea.	L +0,5	Euros ea.	L +0,5	Euros ea.	L +0,5	Euros ea.
1,0	8	4,0	16	4	12,50	20	13,30	22	13,57	25	14,33	28	14,63	30	14,91	32	16,05	35	16,38
1,0	10	5,8	16	4	12,26	20	13,07	22	13,32	25	14,10	28	14,38	30	14,67	32	15,82	35	16,12
1,2	13	8,0	-	5	-	20	13,19	22	13,45	25	14,45	28	14,73	30	14,31	32	16,28	35	16,61
1,2	16	9,5	-	5	-	20	13,64	22	13,93	25	15,14	28	15,43	30	15,75	32	17,19	35	17,54
1,5	20	12,0	-	8	-	20	14,62	22	14,90	25	16,28	28	16,61	30	16,94	32	18,63	35	19,00
1,5	25	17,3	-	8	-	20	15,19	22	15,50	25	16,96	28	17,30	30	17,65	32	20,07	35	20,47
1,5	32	20,7	-	8	-	20	29,00	22	29,58	25	31,86	28	32,50	30	33,16	32	38,06	35	38,82
1,5	40	27,7	-	8	-	20	31,54	22	32,17	25	34,40	28	35,09	30	35,79	32	39,67	35	40,47
1,5	50	37,0	-	8	-	20	34,40	22	35,09	25	37,83	28	38,58	30	39,36	32	41,85	35	42,69

Important:
The diagonal profile should not be longer than d1 max. on dies for square and rectangular forming.

Cutting bushes with start hole ISO 8977 C

Cutting bushes with start hole
ISO 8977 C