- 3 5/8" length extensions are available with or without a set screw
- Set screw is adjustable with CMS-3 .050 Allen hex insert bit & enables another extension/bit to be locked in the extension
- CME-01 2" extension is not available with a set screw
- Chapman extensions are designed to be used with Chapman bits & are not guaranteed to work as a universal tool
- Check out our stubby screwdriver handles
Federal Stock # 1 5120-01-110-5905
Made, hand assembled & inspected in Durham, CT from USA materials.