Precision Machinist Blocks Set for Setup and Inspection 1 Inch x 2 Inch x 3 Inch

A set of precision 1-2-3 machinist blocks designed for setup, layout, and inspection work on various machines including mills, drill presses, and grinders. The hardened steel construction ensures durability and accuracy for alignment checking and calibration.

• Used for checking square alignment on tables and band saws
• Calibrates fence cursors with precise width
• Checks if parts are square before welding or assembly
• Inspects inside angles for 90-degree accuracy
• Offsets table or mill from vice for through-machining
• Features a 23-hole design with threaded and untapped holes
• No moving parts for consistent performance

• Material: Hardened steel
• Dimension: approx. 1" × 2" × 3" (L × W × H)
• Height accuracy: 0.0002"
• Parallelism accuracy: 0.0002"
• Hardness: HRC 48–58
• Shape: Square

• Qty: 2 or 4 × 1-2-3 blocks as per your selection