Precision Machinist Blocks Set Square Gage Tool 1 Inch by 2 Inch by 3 Inch Silver Hardened Steel

A set of precision 1-2-3 machinist blocks designed for setup, layout, and inspection work on various machines such as mills, drill presses, grinders, and CNC machines. These blocks feature hardened steel construction with machined surfaces and accurate 90-degree angles for reliable alignment checking and calibration.

• For checking square alignment on tables and band saws
• Calibrate fence cursors with precise width
• Check parts for square before welding or assembly
• Inspect inside angles for 90-degree accuracy
• Offset table or mill from vice for through-machining
• 23-hole design with threaded and untapped holes
• No moving parts—solid tool

• Material: Hardened 45# 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