findmall Ultra Precision 2 Matched Pair 1-2-3 Blocks 23 Holes .0002" Machinist 123

Key Features:

Heat treated and case hardened to HRC 57-62.

Made of precision-grade tool steel hardened and ground on all 6 sides of block.

Accuracy and squareness on all sides within 0.0002".

23 holes includes (5) 3/8-16 threaded holes for clamping and (18) untapped holes.

Cross drilling design allows for efficient use of lower weight with maximum strength.

Dimensions- 1" × 2" × 3", 2.1 lbs. weight.

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Package Including:

4 × 1-2-3 Blocks

as the picture