Harlingen 4″ 3-Jaw Lathe Chuck Plain Back – 9712-1106

• 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

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