Carr Lane Manufacturing · Drill Bushings
Economical bushings for thin template plates from 3/64" to 3/8" thick, held by a threaded retainer ring. The left-hand thread self-tightens during drilling so the ring does not loosen.
Genuine Carr Lane parts. Equivalent ADB, Boneham and ACTEK bushings quoted on request.
Countersunk type mounts flush in a 100° countersink to .015" below the plate surface. Order by basic part number plus ID, e.g. TTB-24-.0520.
| Basic P/N | OD | ID range | Length | Thread | Retainer ring | Pricing |
|---|---|---|---|---|---|---|
| TTB-24 | 3/8" | .0520-.1960 | 1/2" | 3/8-24 LH | TTR-24-6/-5/-3 | Quote |
| TTB-32 | 1/2" | .1960-.3160 | 1/2" | 1/2-20 LH | TTR-32-6/-5/-3 | Quote |
| TTB-40 | 5/8" | .3125-.4375 | 1/2" | 5/8-18 LH | TTR-40-6/-5/-3 | Quote |
| TTB-48 | 3/4" | .3125-.5312 | 1/2" | 3/4-16 LH | TTR-48-6/-5/-3 | Quote |
| TTB-64 | 1" | .5000-.7656 | 1/2" | 1"-14 LH | TTR-64-6/-5/-3 | Quote |
| Ring suffix | Plate thickness | Pricing |
|---|---|---|
| -6 | .047" - .125" | Quote |
| -5 | .126" - .188" | Quote |
| -3 | .189" - .375" | Quote |
Flush contact of the ring against the plate keeps the bushing perpendicular, and OD serrations stop rotation. Bushings can be removed for replacement or reuse.
Need a slotted version for alignment? See slotted locator template bushings.
Drilling torque tightens a left-hand thread, so the retainer ring cannot back off during use.
Countersunk TTB bushings seat in a 100° countersink and mount flush with the plate. Flanged TTBF bushings have a flange instead; ask us for TTBF dimensions.
Yes. Send the Carr Lane part number or your print and we will quote the matching ADB, Boneham or ACTEK bushing alongside the Carr Lane part, so you can compare price and lead time.
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