ISO 8977 D

Cutting bushes with start hole
ISO 8977 D

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 B with outside diameter D = 8 mm and overall length = 20 mm:
Cutting bush with start hole ISO 8977 B 8,0 x 20

d	D m5	D1 -0,25	d1 max	l min.	h +0,5	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.	L +0,5	Euros ea.
1,0	8	11	4,0	4	5	16	13,64	20	14,62	22	14,90	25	16,40	28	16,72	30	17,07	32	18,34	35	18,71
1,0	10	13	5,8	4	5	16	13,41	20	14,55	22	14,85	25	16,17	28	16,48	30	16,82	32	17,78	35	18,13
1,2	13	16	8,0	5	5	-	-	20	14,79	22	15,13	25	16,40	28	16,72	30	17,07	32	18,63	35	19,00
1,2	16	19	9,5	5	5	-	-	20	15,82	22	16,12	25	17,78	28	18,13	30	18,50	32	20,29	35	20,69
1,5	20	23	12,0	8	5	-	-	20	16,96	22	17,30	25	19,04	28	19,41	30	19,80	32	22,24	35	22,68
1,5	25	28	17,3	8	5	-	-	20	17,78	22	18,13	25	20,07	28	20,47	30	20,88	32	24,07	35	24,55
1,5	32	35	20,7	8	5	-	-	20	30,95	22	31,58	25	35,54	28	36,25	30	36,97	32	43,57	35	44,44
1,5	40	43	27,7	8	5	-	-	20	33,82	22	34,50	25	38,41	28	39,18	30	39,96	32	44,71	35	45,60
1,5	50	53	37,0	8	5	-	-	20	42,42	22	43,26	25	46,44	28	47,36	30	48,31	32	49,27	35	50,27

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 D

Cutting bushes with start hole
ISO 8977 D