H
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BESONDERHEITEN: Similar to a P bush, but with a head to resist heavy axial loads. H bushes are permanently pressed into the jig plate. They are generally used for single-operation drilling or reaming, when you do not expect to replace bushes during the tooling's lifetime. The head can be left exposed, or recessed by counter-boring the installation hole.
STANDARD GRÖßEN: See Dimensions page for part numbers and standard ID drill sizes. The prices shown apply to standard bushes only, either ground or un-ground OD, with any standard USA or metric ID size within the stated range. | | H-20-16-.1250 | | Standard bush, 1/8" ID | | | H-20-16-.1772 | | Standard bush,
4.50mm, ID (.1772") | | | H-20-16U-.1250 | | Add "U" for Unground OD. |
STANDARD-INNENDURCHMESSERTOLERANZ:| | From #80 to 1/4" | | | | +.0001/+.0004 | | | Over 1/4 to 3/4" | | | | +.0001/+.0005 | | | Over 3/4 to 1-1/2" | | | | +.0002/+.0006 | | | Over 1-1/2 to 2-3/4" | | | | +.0003/+.0007 |
REIBAHLE-INNENDURCHMESSERTOLERANZ: Reamer bushes have a different tolerance range than drill bushes:| | From #80 to 1/4" | | | | +.0005/+.0008 | | | Over 1/4 to 3/4" | | | | +.0006/+.0010 | | | Over 3/4 to 1-1/2" | | | | +.0008/+.0012 |
To order bushes with a reamer tolerance, add "-REAMER" to the part number:| | H-20-16-.1250-REAMER (Special) |
LANGE BUCHSEN OHNE STANDARD-SENKBOHRUNG: Extremely long bushes with a small ID size (marked*) are counter-bored according to ANSI standards for proper drill-bearing length to eliminate binding and heat buildup. Add "-NCB" for applications that require these bushes without a counter-bore:| | H-20-16-.1250-NCB (Special) |
WERKSTOFF: 1144 Stress-proof steel, heat treated to achieve Rc 62-64 ID hardness. Other materials readily available by special order (see Specials). |
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