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Extended Range Bushings
Head Press Fit
Type H

  • Same as Headless Press Fit but with head (or shoulder) on the drilling entry end
  • Head prevents heavy axial loads from forcing bushing through jig hole
  • Available with finish ground O.D. or unground for custom grinding
  • Flush mounting is possible by counterboring jig hole to fit bushing head

Extended Range Bushings with a ground O.D. are concentric within .0005" T.I.R. Unground Extended Range Bushings have a concentricity of .006" T.I.R. To order an unground O.D. add the letter "U" to the end of the ANSI designation.

The price code is listed below the ANSI designation for each Extended Range Bushing and applies to standard drill sizes only. Special Extended Range Bushings will be priced on request.

Extended Range Bushings are not returnable.

  
I.D. Range (Drill Size) Std. I.D. Tolerance
(add to nom I.D.)
Over 1-1/2 to 2-3/4 +.0003 to +.0007


A
I.D.
Range

1.5000
to
2.0000
1.5000
to
2.1250
1.5000
to
2.3750
1.7500
to
2.5000
2.2500
to
2.7500
2.2500
to
2.8750
2.5000
to
3.0000
2.5000
to
3.1250
2.7500
to
3.3750
3.0000
to
3.6250
3.0000
to
3.7500
3.3750
to
3.8750
3.3750
to
4.1250
3.6250
to
4.2500

B
O.D. Ground

2.3775
2.3771
2.5025
2.5021
2.7525
2.7521
3.0028
3.0023
3.2528
3.2523
3.3778
3.3773
3.5028
3.5023
3.7528
3.7523
4.0028
4.0023
4.2530
4.2525
4.3780
4.3775
4.5030
4.5025
4.7530
4.7525
5.0030
5.0025

B
O.D. Unground

2.395
2.390
2.520
2.515
2.770
2.765
3.020
3.015
3.270
3.265
3.395
3.390
3.520
3.515
3.770
3.765
4.020
4.015
4.270
4.265
4.395
4.390
4.520
4.515
4.770
4.765
5.020
5.015
L
E
N
G
T
H

C
3/4 H152-12 H160-12 H176-12 H192-12 H208-12 H216-12 H224-12 H240-12 H256-12 H272-12 H280-12 H288-12 H304-12 H320-12
1 H152-16 H160-16 H176-16 H192-16 H208-16 H216-16 H224-16 H240-16 H256-16 H272-16 H280-16 H288-16 H304-16 H320-16
1-1/4 H152-20 H160-20 H176-20 H192-20 H208-20 H216-20 H224-20 H240-20 H256-20 H272-20 H280-20 H288-20 H304-20 H320-20
1-1/2 H152-24 H160-24 H176-24 H192-24 H208-24 H216-24 H224-24 H240-24 H256-24 H272-24 H280-24 H288-24 H304-24 H320-24
1-3/4 H152-28 H160-28 H176-28 H192-28 H208-28 H216-28 H224-28 H240-28 H256-28 H272-28 H280-28 H288-28 H304-28 H320-28
2 H152-32 H160-32 H176-32 H192-32 H208-32 H216-32 H224-32 H240-32 H256-32 H272-32 H280-32 H288-32 H304-32 H320-32
2-1/8 H152-34 H160-34 H176-34                      
2-1/4 H152-36 H160-36 H176-36 H192-36 H208-36 H216-36 H224-36 H240-36 H256-36 H272-36 H280-36 H288-36 H304-36 H320-36
2-1/2 H152-40 H160-40 H176-40 H192-40 H208-40 H216-40 H224-40 H240-40 H256-40 H272-40 H280-40 H288-40 H304-40 H320-40
2-3/4 H152-44 H160-44 H176-44 H192-44 H208-44 H216-44 H224-44 H240-44 H256-44 H272-44 H280-44 H288-44 H304-44 H320-44
3 H152-48 H160-48 H176-48 H192-48 H208-48 H216-48 H224-48 H240-48 H256-48 H272-48 H280-48 H288-48 H304-48 H320-48
3-1/4 H152-52 H160-52 H176-52 H192-52 H208-52 H216-52 H224-52 H240-52 H256-52 H272-52 H280-52 H288-52 H304-52 H320-52
3-1/2 H152-56 H160-56 H176-56 H192-56 H208-56 H216-56 H224-56 H240-56 H256-56 H272-56 H280-56 H288-56 H304-56 H320-56
3-3/4 H152-60 H160-60 H176-60 H192-60 H208-60 H216-60 H224-60 H240-60 H256-60 H272-60 H280-60 H288-60 H304-60 H320-60
4 H152-64 H160-64 H176-64 H192-64 H208-64 H216-64 H224-64 H240-64 H256-64 H272-64 H280-64 H288-64 H304-64 H320-64
4-1/4 H152-68 H160-68 H176-68 H192-68 H208-68 H216-68 H224-68 H240-68 H256-68 H272-68 H280-68 H288-68 H304-68 H320-68
4-1/2 H152-72 H160-72 H176-72 H192-72 H208-72 H216-72 H224-72 H240-72 H256-72 H272-72 H280-72 H288-72 H304-72 H320-72
4-3/4 H152-76 H160-76 H176-76 H192-76 H208-76 H216-76 H224-76 H240-76 H256-76 H272-76 H280-76 H288-76 H304-76 H320-76
5 H152-80 H160-80 H176-80 H192-80 H208-80 H216-80 H224-80 H240-80 H256-80 H272-80 H280-80 H288-80 H304-80 H320-80
5-1/2           H216-88 H224-88 H240-88 H256-88 H272-88 H280-88 H288-88 H304-88 H320-88
6               H240-96 H256-96 H272-96 H280-96 H288-96 H304-96 H320-96
F 2-3/4 2-3/4 3 3-1/4 3-1/2 3-5/8 3-7/8 4-1/8 4-3/8 4-5/8 4-3/4 4-7/8 5-1/8 5-3/8
G 3/8 3/8 3/8 3/8 3/8 3/8 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1/2



ISO 9001
Registered
Quality
System