Hardened and Ground Drilling Bush - Renewable Drill Bush, Liner Jig Bushes, Drill Jig Bushes

Hardened and Ground Drilling Bush

Hardened and ground bushes are developed as per IS 666:1972. We have a wide range of bushes, which are as follows:

Drill jig bushes
Renewable Drill Bush
Liner Bush
All types of General purpose hardened and ground bushes. Material - EN-31 High Hardness - 62-65 HRC Quick and prompt delivery against orders.

Renewable Drill Bush

A renewable drill bush of type B with bore d1 = 18mm d2 = 28mm and L1 = 32mm shall be designated as renewable drill bush B 18 x 28 x 32 IS : 666 (Part II) slip renewable bushes of type B, if required with entry groove, to be indicated in the designation as renewable drill bush (EG) 18 x 28 x 32 IS : 666 (part II)

All Dimensions in Millimeters
d1 G7		d2 h6	d3	d4	d5	L1			L2	L3	L4		Z
From	To	d2 h6	d3	d4	d5	Short	Med.	Long	L2	L3	For L1 Med.	For L2 Long	Z
1.2	2.65	8	15	12	3	8	12.5		8	1	4.5		0.02
2.651	4.75	10	18	15	5	10	16	25	8	1	6	15	0.02
4.751	8.5	15	24	20	9	12.5	20	32	10	1	8	20	0.03
8.501	14.0	22	32	28	14.5	16	25	40	10	1	9	24
14.001	19.0	28	40	36	20	20	32	50	12	1.5	12	30
19.001	25.0	35	50	46	26	20	32	50	12	1.5	12	30
25.001	33.5	46	60	56	35	25	40	63	16	2	15	38	0.04
33.501	45.0	58	74	70	47	25	40	63	16	2	15	38	0.04

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Liner Jig Bushes

A headed liner bush having d1 = 22mm and L = 25mm shall be designated as : LINER BUSH A22 x 25 IS : 666 (part II)

All Dimensions in Millimeters
d1 h7	L1		L2	d2 m6	d3	Z
	Short	Long
8	8	12.5	2	12	15	0.01
10	10	16		15	18
15	12.5	20	2.5	20	24
22	16	25		28	32	0.02
28	20	32	3	36	40
35				46	50	0.03
46	25	40	4	56	60
58				70	74

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Drill Jig Bushes

A headed jig bush of type A with bore D1 – 12F7 and length L1 = 20mm shall be designated as : JIG BUSH A12 x 20 IS : 666 (Part I)

A headless jig bush of type C with bore dia d1 = 12F7 and length L1 = 20mm shall be designated as : JIG BUSH C12 x 20 IS : 666 (Part 1)

All Dimensions in Millimeters
d₁ F₇		d₂ n₆	L₁		L₂	d₃	F₁	r₂	z
Over	upto		Short	Long
1.2	1.8	4	6	9	2	7	1.2	0.3	0.01
1.801	2.6	5				8
2.601	3.3	6	8	12	2.5	10	1.6
3301	4	7				11		0.4
4.001	5	8				12	2
5.001	6	10	10	16	3	14			0.02
6.001	8	12				16		0.6
8.001	10	15	12	20	4	19	2.5	0.8
10.001	12	18				22
12.001	15	22	16	28		26	4
15.001	18	26				30
18.001	22	30	20	36	5	35	6	1
22.001	26	35				40			0.04
26.001	30	42				47
30.001	35	48	25	45		55	8
35.001	42	55				62
42.001	48	62	30	56	6	69
48.001	55	70				77		1.6
55.001	63	78	35	72		85

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Hardened and Ground Drilling Bush Renewable Drill Bush Liner Jig Bushes Drill Jig Bushes

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