Hertel 1-101-0800 Manual Lathe Chuck 8 in 3 Jaw

Product Description

The HERTEL 1-101-0800 is a 3-jaw, self-centering manual lathe chuck designed for precise workholding on metalworking lathes. Built from forged steel, this chuck measures 8 inches in diameter with a plain back mount configuration and supports a maximum spindle speed of 3,100 RPM. The self-centering jaw mechanism allows all three jaws to move simultaneously, reducing setup time when chucking round or hexagonal stock. With a jaw capacity range of 5/32 inch minimum to 7-7/8 inch maximum and a through-hole diameter of 2.1654 inches, it accommodates a wide range of bar stock and workpiece sizes. At 38 pounds, it is a substantial, production-grade tool intended for shop-floor use by machinists and toolroom professionals.

This chuck is suited for manual turning operations on engine lathes and toolroom lathes in both production and job-shop environments. The plain back mount design requires a lathe-specific adapter plate to match the machine spindle, making it adaptable to various lathe makes and spindle configurations. It is appropriate for residential machine shops, vocational training facilities, and commercial manufacturing operations where accurate, repeatable workholding of cylindrical or symmetrical workpieces is required. The adjustable jaw feature supports fine-tuning of concentricity for closer tolerance work.

Key Features

• Self-centering 3-jaw design moves all jaws simultaneously for fast, repeatable workpiece centering
• Forged steel body construction for rigidity and durability under continuous cutting loads
• Plain back mount allows adaptation to a wide range of lathe spindle configurations via adapter plate
• Maximum spindle speed of 3,100 RPM supports standard turning operations
• Through-hole diameter of 2.1654 inches accommodates bar stock fed through the spindle
• Jaw capacity range from 5/32 inch to 7-7/8 inch covers small-diameter to near-full-capacity workpieces

Compatibility

Designed as an OEM-style replacement or direct-fit manual lathe chuck for engine lathes and toolroom lathes accepting an 8-inch plain back mount chuck with a compatible adapter plate. No specific lathe model compatibility was provided by the manufacturer for this SKU.

Installation Notes

Installation should be performed by a qualified machinist familiar with lathe spindle configurations and chuck mounting procedures. Always power down and lock out the lathe before mounting or removing the chuck. A proper adapter plate matching the lathe spindle nose type must be sourced separately and correctly torqued to the spindle before attaching the chuck body. Verify runout with a dial indicator after mounting and before beginning any cutting operation.