| Country of Origin | United States |
|---|---|
| Brand | Jacobs |
| Drill Chuck Type | Drill Chuck |
| Mounting Size | 1JT |
| Mount Type | Tapered Mount |
| Custom Bundle | No |
| MPN | 1B |
| Chuck Type | Keyed |
| Modified Item | No |
Check the listing for details. JACOBS #1B MEDIUM DUTY DRILL CHUCK - 0 to 1/4" - 1/2" shank. Condition: Used, Made in United States. Listed at 44.99 USD. Model #: 1B. Made in the U.S.A. by Jacobs. Shank: 1/2" straight. Shank Mount: 3/8-24 UNF. Through-Hardened Sleeve Teeth Plus Hardened Nose and Keyholes Provide Outstanding Wear Resistance. One-Piece Sleeve Eliminates Crack Between Driving Teeth Often Found in Other Designs.