Value Collection 630-4019 1-2-3 Setup Block Matched Pair

Product Description

The VALUE COLLECTION 630-4019 is a matched pair of 1-2-3 setup blocks used for workpiece fixturing, angle setup, and precision measurement in machinist and toolroom environments. Each block measures 1 inch wide, 2 inches long, and 3 inches tall, with a squareness tolerance of 0.0002 inches and an overall dimensional tolerance range of 0.0001 to 0.0007 inches. The blocks ship in a wooden case and are intended for use by machinists, toolmakers, and metrology technicians who require reliable, repeatable setups on surface plates, milling machines, and grinding fixtures.

1-2-3 blocks are a standard fixturing tool in machine shops and tool rooms. This matched pair is suited for applications including part elevation, parallel setup, sine plate work, and squaring operations on manual mills, CNC setups, and inspection stations. The 5 tapped holes (3/8-16 thread) and 18 untapped through-holes allow clamping, stacking, and bolt-through configurations for a wide range of workholding scenarios. The precision-ground surfaces make these blocks appropriate for both production and inspection use.

Key Features

• Matched pair supplied together for parallel and stacking setups
• Squareness of 0.0002 inches for reliable 90-degree reference
• Overall tolerance of 0.0001 to 0.0007 inches across all faces
• 5 tapped holes at 3/8-16 thread for clamping and accessory attachment
• 18 untapped through-holes for bolt-through and weight-reduction configurations
• Wooden case included for storage and transport protection

Compatibility

Designed as a general-purpose matched pair of precision 1-2-3 setup blocks suitable for standard machinist fixturing, inspection, and workholding applications on surface plates and machine tool tables.

Installation Notes

1-2-3 blocks are used by machinists and toolmakers and do not require permanent installation. Clean all mating surfaces before use to prevent burrs or chips from compromising squareness readings. When using tapped holes for clamping, ensure fasteners are appropriate for the 3/8-16 thread and do not over-torque against precision ground faces. Store in the included wooden case when not in use to protect ground surfaces from corrosion and damage.