Product Description
Martin - 3/8" Drive Crowfoot Wrench
Martin Sprocket & Gear — 42 Configurations
Martin wrenches are precision-forged tools designed for professional and industrial use. Built from premium alloy steel with a chrome or black oxide finish, each wrench is manufactured to meet the demanding tolerances required for maintenance work on heavy equipment, industrial machinery, and fleet vehicles. Martin’s wrench line carries the same commitment to quality that has defined their power transmission products since 1928.
Available in 42 sizes (BC20, BLKBC20, BC22, BLKBC22, BC24 and 37 more), providing coverage for the most common fastener sizes encountered in professional maintenance operations.
- Premium Materials — manufactured from high-quality steel for industrial-grade durability
- Precision Machined — tight tolerances for reliable, consistent performance
- Professional Grade — built for daily use in demanding industrial environments
- USA Heritage — Martin Sprocket & Gear, manufacturing since 1928
| Opening | Chrome SKU | Black SKU | Points | Weight |
|---|---|---|---|---|
| SAE (8) | ||||
| 5/8" - 0.62in - 15.88mm | BC20 | BLKBC20 | 6 Point | 0.10 lbs |
| 11/16" - 0.69in - 17.46mm | BC22 | BLKBC22 | 6 Point | 0.10 lbs |
| 3/4" - 0.75in - 19.05mm | BC24 | BLKBC24 | 6 Point | 0.12 lbs |
| 13/16" - 0.81in - 20.64mm | BC26 | BLKBC26 | 6 Point | 0.13 lbs |
| 7/8" - 0.88in - 22.22mm | BC28 | BLKBC28 | 6 Point | 0.15 lbs |
| 15/16" - 0.94in - 23.81mm | BC30 | BLKBC30 | 6 Point | 0.16 lbs |
| 1" - 1.00in - 25.40mm | BC32 | BLKBC32 | 6 Point | 0.18 lbs |
| 1-1/16" - 1.06in - 26.99mm | BC34 | BLKBC34 | 6 Point | 0.19 lbs |
| Metric (13) | ||||
| 15.0mm - 0.59in - 15.00mm | BC15MM | — | 6 Point | 0.09 lbs |
| 16.0mm - 0.63in - 16.00mm | BC16MM | — | 6 Point | 0.12 lbs |
| 17.0mm - 0.67in - 17.00mm | BC17MM | — | 6 Point | 0.10 lbs |
| 18.0mm - 0.71in - 18.00mm | BC18MM | — | 6 Point | 0.12 lbs |
| 19.0mm - 0.75in - 19.00mm | BC19MM | — | 6 Point | 0.12 lbs |
| 20.0mm - 0.79in - 20.00mm | BC20MM | — | 6 Point | 0.13 lbs |
| 21.0mm - 0.83in - 21.00mm | BC21MM | — | 6 Point | 0.13 lbs |
| 22.0mm - 0.87in - 22.00mm | BC22MM | — | 6 Point | 0.15 lbs |
| 23.0mm - 0.91in - 23.00mm | BC23MM | — | 6 Point | 0.16 lbs |
| 24.0mm - 0.94in - 24.00mm | BC24MM | — | 6 Point | 0.16 lbs |
| 25.0mm - 0.98in - 25.00mm | BC25MM | — | 6 Point | 0.15 lbs |
| 26.0mm - 1.02in - 26.00mm | BC26MM | — | 6 Point | 0.18 lbs |
| 27.0mm - 1.06in - 27.00mm | BC27MM | — | 6 Point | 0.19 lbs |
Where Martin Wrenches Get Put to Work
- Industrial Maintenance — tight-clearance fasteners on machinery, piping, and equipment housings
- Heavy Equipment — hydraulic line fittings, hard-to-reach suspension bolts, and enclosed frame components
- Agricultural Equipment — implement adjustments, linkage bolts, and confined-space fasteners on headers and planters
- Automotive & Fleet — fuel lines, transmission fittings, brake lines, and tight engine bay fasteners
1 All dimensions follow the Lambear tri-format: Imperial fraction – Decimal inches – Metric (mm).
2 Specifications are catalog values. Contact us for application-specific recommendations.
