Ten Pair 1/8 Inch By 3 Inch Precision Parallel Block Set With 0.0002 Parallelism Alloy Steel Matched Blocks From 1/2 Inch To 1 5/8 Inch For Machinists And DIY Pros And Gearheads Needing Tight Tolerances And Fast Accurate Setups

Precision parallel block set: 1/8 x 3 in for tolerances
✔️ Ten pairs of 1/8 x 3 inch precision parallel blocks, plastic case

These precision parallel blocks are hardened tool-steel pieces designed for accurate clamping and squaring. They are commonly used to keep parts aligned in drilling, milling, grinding, boring, and assembly work on machine setups and workshop benches.

✅ Material - tool steel, stress relieved, hardened
✅ Dimensions - 3 in length, 1/8 in thick; widths from 1/2 in to 1-5/8 in
✅ Holes - two holes per block, same size within each pair
✅ Function - precision clamping for drilling, milling, grinding, assembly
✅ Package - 10 pairs in a single plastic case

💡 What is a precision parallel block used for in machining?

These handy fixtures keep parts square and flat for reliable setups.

- Handy for aligning workpieces in drilling, milling, boring - Improves repeatable clamping and measurement accuracy - Pairs with common vices and fixture plates for machine shops