- INTERNAL: 1/4"-2" (8mm-51mm)
- EXTERNAL:1/8"-2" (3mm-51mm)
- Tip sizes, Straight: .023"(.6mm), .039"(1.0mm), .047"(1.2mm), .074"(1.9mm)
- Tip Sizes, Bent 90-degrees: .039"(1.0mm), .047"(1.2mm)
- Contains one each of the 1421 and 1434 models along with 5 pairs of color-coded, interchangeable tips and hex key for each (10 total)
- Patent No. 7,194,936
