findmall High Precision 1-2-3 Blocks 23 Holes .0002" Machinist 123 Jig 5 Matched Pair

Product Dimensions: 1" x 2" x 3", 2.1 lbs. weight (each) 23 holes consists of 5 tapped holes that are 3/8-16 for clamping and 18 untapped holes Accuracy with squareness on all sides within .0002" per inch Hardened and precision Ground on all 6 sides of each block Cross drilling design gives minimum weight and maximum strengthYou may also like 15Pcs Gauge Block Set Aluminum Height Gauges Set Setup Bars Precision Bars Testing Gage Block Gage Measuring Tool ,Easy to Use.