2. Designed for use with cylindrical shank tools, not flats
3. Back bearing diameter of 1-1/4 inches and overall length of 3-17/64 inches
4. Using high quality spring steel is stable in perfomance
5. Collet for holding workpieces in a lathe or other machine tool
6. Heat-treated right-hand 1.240 inches x 20 external threads for long life, no internal stop thread
6. Sectional heat treatment for different hardness and ground spring steel for accuracy and resistance to wear and breakage
All collets have an concentricity T.I.R at 3d extension
Sectional heat treatment for different hardness
| SKU | BB0301001 | BB0301003 | BB0301005 | BB0301007 | BB0301009 | BB0301018 | BB0301022 | BB0301026 |
| Style Name | 5C-1/8" | 5C-3/16" | 5C-1/4" | 5C-5/16" | 5C-3/8" | 5C-5/8" | 5C-3/4" | 5C-7/8" |
| Shape | Round | Round | Round | Round | Round | Round | Round | Round |
| L | 3.426" | 3.418" | 3.418" | 3.405" | 3.397" | 3.372" | 3.36" | 3.346" |
| Material Type | Alloy Steel | Alloy Steel | Alloy Steel | Alloy Steel | Alloy Steel | Alloy Steel | Alloy Steel | Alloy Steel |
| Net Weight | 0.73 ounces | 0.73 ounces | 0.62 ounces | 0.62 ounces | 0.62 ounces | 0.62 ounces | 0.62 ounces | 0.62 ounces |
| Gross Weight | 0.66 ounces | 0.66 ounces | 0.55 ounces | 0.55 ounces | 0.55 ounces | 0.55 ounces | 0.55 ounces | 0.44 ounces |
| Meas | 3.54×1.57×1.57 | 3.54×1.57×1.57 | 3.54×1.57×1.57 | 3.54×1.57×1.57 | 3.54×1.57×1.57 | 3.54×1.57×1.57 | 3.54×1.57×1.57 | 3.54×1.57×1.57 |