Ultra Precision 1-2-3 Blocks Set with Screw Matched Pair, Hardened Steel Setup Blocks with Plastic Case

Ultra Precision 1-2-3 Blocks Set with Screw Matched Pair 23 Holes .0001" Squareness Hardened Steel 1"x2"x3" Blocks Set Setup Blocks Industrial Tools w/Plastic Case

Ultra Precision 1-2-3 Blocks Set with Screw Matched Pair, Hardened Steel Setup Blocks with Plastic Case

Feature: With 23 Holes Squareness: 0.0001"/1" Parallelism: ±0.0001" Height accuracy in pair: ±0.0001" Hardness: HRC 56-60 Finished from 6-16 micro inches Nominal tapping: 0.0001" to 0.0003" 5 holes tapped to 3/8-16 and others (8.9mm) are untapped Precision ground on all sides Squareness on all sides Surface finish Oversize to allow nominal tapping Package Includes : 1 * matched pair 1-2-3 blocks 5 * stainless steel socket head cap screws 1 * hex key 1 * fitted plastic case

Key Features

• ✅ Feature: 23 holes include 5 holes tapped to 3/8-16 and others untapped, cross drilling design allows for efficient use of lower weight with maximum strength.
• ✅ Accuracy: Squareness: 0.0001"; Parallelism: +/- 0.0001"; Height accuracy in pair: +/-.0001".
• ✅ Material]: Made of precision-grade tool stainless steel hardened and ground on all 6 sides of block, heat treated and case hardened to HRC 56-60.
• ✅ Application: Perfect for machinists, woodworkers, metalworkers, and more.
• ✅ Package Includes: 1 * matched pair 1-2-3 blocks; 5 * stainless steel socket head cap screws; 1 * hex key; 1 * fitted plastic case.

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