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Product Information
H Bushings are similar to P bushings, but with a head to resist heavy axial loads. H bushings are permanently pressed into the jig plate. They are generally used for single-operation drilling or reaming, when you do not expect to replace bushings during the tooling's lifetime. The head can be left exposed, or recessed by counterboring the installation hole. Quick-Ship Drill Bushings are popular bushing sizes that we do our best to keep in stock and ready for same-day shipment 100% of the time. These bushings include most common ID drill sizes. Complete part numbers for all quick-ship H bushings are listed in the tables below.
Application Information
H bushings are permanently pressed into the jig plate. The head can be left exposed, or recessed by counterboring the installation hole.
ID Tolerance
Standard ID Tolerance: From #80 to 1/4" +.0001/+.0004 Over 1/4 to 3/4" +.0001/+.0005 Over 3/4 to 1-1/2" +.0002/+.0006
OD Tolerance
Standard OD Tolerance: 5/32 to 13/64" +.0016/+.0012 1/4 to 13/32" +.0016/+.0013 7/16 to 5/8" +.0017/+.0014 3/4 to 1" +.0018/+.0015 1-1/8 to 1-1/4" +.0020/+.0017 1-3/8 to 1-1/2" +.0022/+.0018
Material
| MATERIAL | HEAT TREAT | FINISH | DFARS | RoHS |
| 1144 or 52100 steel | Heat Treated to achieve Rc 62-64 ID Hardness | - | - | ✔ |
Parts Specification
| Part Number | ID | OD | LENGTH | FDIA | G |
| H-16-6-.1285 | #30 (.1285) | 1/4 | 3/8 | 23/64 | 3/32 |
Warning:
This Product Can Expose You To Materials And/Or Chemicals Including Arsenic, Lead, And Other Materials And/Or Chemicals Which Are Known To The State Of California To Cause Cancer And/Or Reproductive Harm. For more information, visit www.P65Warnings.ca.gov