Top 10 Best 123 Blocks Set Machinist

This matched pair of blocks is ground to tolerances of .0001. 23 holes, 5 tapped 38-16 TPI and 18 plain. Precision ground and case hardened on all six sides. Squareness of all sides is within .0002 per inch.. Used for set-up, layout and inspection jobs.

Perfect for machinists, woodworkers, metalworkers, and more. Each block measures 3 by 2 by 1 inches in size. Features 5 threaded 38-16 UNC cross-drilled holes. Calibrate equipment, space workpieces, or collect exact measurements. Includes a set of two 1-2-3 blocks.

Design 23 holes includes 5 holes tapped to 38-16 and others untapped Cross drilling design allows for efficient use of lower weight with maximum strength,. Product includes ,Five stainless steel socket head cap screws,One hex key Fitted Case. Application Perfect for machinists, woodworkers, metalworkers, and more. MaterialHeat treated and case hardened to HRC 56-60. Made of precision-grade tool steel hardened and ground on all 6 sides of block. AccuracySquareness .0001 Parallelism - .0001 Height Accuracy in Pair -.0001.

Made of precision-grade tool steel hardened and ground on all 6 sides of block. Heat treated and case hardened to HRC 57-61. Accuracy and squareness on all sides .0002 Dimensions- 1 x 2 x 3. 23 holes includes 5 38-16 threaded holes for clamping and 18 untapped holes. Cross drilling design allows for efficient use of lower weight with maximum strength.

This matched pair of blocks is ground to tolerances of .0001. 23 holes, 5 tapped 38-16 TPI and 18 plain. Precision ground and case hardened on all six sides. Squareness of all sides is within .0002 per inch.. Used for set-up, layout and inspection jobs. Has 23 holes with 5 holes tap to 38-16 threads for clamping and 18 untapped holes.

This is a matched set 2 each of professional quality 1-2-3 blocks. They are precision ground and case hardened to RC 55-62 on all six sides.. They contain no holes.. Overall sizes are within - 0.0002 inch Flatness and parallelism are within 0.0002inch. Squareness on all sides to within 0.0002 inch. Pairs are matched to a tolerance of 0.0002 inch.. There are 2 pieces per set..

Specification Dimensions 1 2 3. Weight 10 pounds. 5 pairs 1-2-3 blocks.. AccuracyOverall size is within - .0002 flatness and parallelism on all 6 sides within .0002.. Material Made of precision-grade tool steel hardened and ground on all 6 sides of block, heat treated and case hardened to HRC 55-62.. Process It is made of precision tool steel, case hardened and precision ground on all 6 sides of each block,used for set-up, layout and inspection jobs.. Strength 23 holes include 5 38-16 threaded hole clamping and 18 non-threaded hole. The cross-drilling design allows for effecient use of lower weight with maximum strength..

Our Part ALL-55500. 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 .0001-.0002. 23 holes includes 5 38-16 threaded holes for clamping and 18 untapped holes Cross drilling design allows for efficient use of lower weight with maximum strength, Dimensions- 1 x 2 x 3, 2.1 lbs. weight.

Tapped Hole Size 5 38-16UNC. No. of Holes 23. Overall Length 2. Product Width 1. Product Height 3.

Dimensions- 1 x 2 x 3, 3.5 lbs. weight. Accuracy and squareness on all sides within .0001-.0002. Made of precision-grade tool steel hardened and ground on all 6 sides of block. Surface finish from 6 to 16 microinches. Heat treated and case hardened to HRC 57-62.