Precision Two-Hole Parallels And Matched One-Two-Three Block Pair In One Eighth Inch By Three Inch Size From HHIP 9999-0031 Pro Grade Tool Steel Hardened And Stress Relieved Includes Fitted Wood Case Shop Ready 0.0003 Inch Parallel Tolerance On Two Sides

Precision Two-Hole Parallels & 1-2-3 Block Set, 0.125 x 3 in
✔️ 2-hole parallels 0.0003 in tolerance; 1-2-3 blocks hardened in case

This shop-ready precision set combines two-hole parallels with a matched 1-2-3 block pair. Sized at 0.125 in by 3 in (3.175 mm x 76.2 mm), it fits tight layouts and is a staple for layout, squaring, and inspection in milling, drilling, and general fabrication shops.

✅ Includes 2-hole parallels and 1-2-3 block pair in one eighth inch by three inch size
✅ 2-hole parallels: tool steel, stress-relieved, precision ground, with fitted wood case
✅ 0.0003 in parallel tolerance on two sides; top & bottom within 0.001 in overall
✅ 23-hole 1-2-3 blocks: heat treated, case hardened to HRC 55-60, ground on all 6 sides
✅ Squareness within 0.0002 in per inch
✅ Prop 65 warning: metals may contain listed substances

💡 What is a precision parallel block set used for in metalworking? These handy tools help with accurate squaring and alignment across fixtures. - Handy for squaring workpieces on mills and drill presses - Handy for layout and fixture setup to ensure parallelism - Great for height gauging and inspection reference - Ideal for quick, repeatable setups in shop environments