Harlingen 3-Jaw Lathe Chucks - Plain Back
- Body is entirely made of wear-resistant semi-steel No.40/No.45 (ASTM) providing a higher hardness at HB190-220 compared to other brands using HT250 cast iron with hardness of HB180-220.
- High quality No.35 (ASTM) is used to achieve a higher accuracy, strength and extended tool life. Competitors use HT150 cast iron or engineering plastics as a substitute.
- Specific machines and fixtures have been adapted to process H-Groove simultaneously so the clamping accuracy is guaranteed.
- Jaw are made of hardened carbon 1045 (ASTM) steel.
- The jaws are pressed individually to ensure precise fit, powerful clamping performance and each jaw is interchangeable while maintaining accuracy.
- The scroll is made of hardened and precision machined 5140 (ASTM) to enhance wear resistance and strength.
- Scroll face threads are processed with high accuracy CNC machining which improves self-centering performance.
- Pinions are made of 20CrMnTi with a quenching procedure to enhance wear-resistance and strength.
- Each chuck body has its own ID and is 100% inspected with trackable data.
Included:
2 Sets of jaws
Lathe Chuck wrench & 1 set of mounting screws

| Item No. | D1 | D2 | D3 | H | H1 | h |
| 9712-1105 | 2.17" | 2.6" | 0.63" | 2.6" | 1.97" | 0.14" |
| 9712-1106 | 2.83" | 3.3" | 0.87" | 2.93" | 2.17" | 0.14" |
| 9712-1107 | 3.74" | 4.25" | 1.18" | 3.3" | 2.28" | 0.16" |
| 9712-1108 | 5.12" | 5.6" | 1.57" | 3.74" | 2.6" | 0.2" |
| 9712-1109 | 6.5" | 7.09" | 2.56" | 4.29" | 2.95" | 0.2" |
For more info, visit www.p65warnings.ca.gov.