- Catalog Number: JCM30221
- Closed Length: 3-7/8 in
- Country of Origin: CN
- Open Length: 2-31/32 in
- Outside Diameter: 2.44 in
- Standards: PROP65: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
- Type: Super
- UPC 11: 09545600221
- UPC 12: 09545600221
- Stock Status: NONSTOCK
- Brand: Jacobs®
- Manufacturer: Apex Tool Group
- Bearing Type: Ball
- Capacity: 0.04 to 0.5 in
- Key Number: K3
- Key Type: Keyed
- Mounting Size: 3JT
- Mounting Type: Jacobs Taper
- Features
| Ball bearing construction maximizes gripping force and drilling accuracy |
| Jaws center ground for straightness and alignment |
| One piece sleeve eliminates crack between driving teeth often found in other designs |
| Through hardened sleeve teeth, plus hardened nose and keyholes provide outstanding wear resistance |
| Fluted sleeve standard |
| Inspected for performance and precision |
| TIR 0.003 in maximum at half capacity |