Value Collection 630-4005 1-2-3 Setup Block Hardened Steel

Product Description

The VALUE COLLECTION 630-4005 is a hardened steel 1-2-3 setup block used for precision layout, workholding, and squareness verification in machining and fabrication environments. Measuring 1 inch wide, 2 inches long, and 3 inches tall, it delivers a squareness tolerance of 0.0001 inches and an overall dimensional tolerance of 0.0001 to 0.0007 inches. The block is hardened to 58-60 HRC for resistance to wear and deformation under repeated use. Sold as a matched pair, it is suited for machinists, tool and die makers, and precision metrology technicians who need reliable reference blocks for setups, inspection, and grinding operations.

The 630-4005 is used in machine shops, tool rooms, and inspection departments for a range of tasks including layout work and precision grinding setups. The 3/8-16 tapped holes allow the blocks to be bolted together or used with clamps and fixtures for part holding on milling machines, surface grinders, and drill presses. The matched pair configuration ensures both blocks share consistent tolerances, making them interchangeable for stacking, paralleling, or squaring workpieces. Typical users include machinists and quality technicians working in both production and job shop settings.

Key Features

• Squareness of 0.0001 inches for high-accuracy reference and inspection work
• Overall tolerance of 0.0001 to 0.0007 inches across all faces
• Hardened steel construction at 58-60 HRC for long service life
• 3/8-16 tapped holes for clamping, fixturing, and bolt-together configurations
• Sold as a matched pair with consistent tolerances across both blocks
• Supports layout work and precision grinding applications

Compatibility

Designed as a standard 1-2-3 block for use with milling machines, surface grinders, drill presses, and inspection fixtures where a hardened steel precision reference block is required.

Installation Notes

Setup blocks are installed and repositioned by machinists and toolmakers as part of machine setup and workholding procedures. Ensure the mounting surface and block faces are clean and free of chips or burrs before use, as contamination will affect squareness readings. Use appropriate torque when threading fasteners into the 3/8-16 tapped holes to avoid damaging threads in the hardened steel. Handle with care to prevent nicking precision-ground faces.