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1-2-3 Machinist Blocks 23 Holes Matched Pair (1x2x3) Ultra Precision Machinist Set Up Blocks 0.0002In 123 Jig Replacement for Milling Machine (2-Pack)

5.0 (5) Write Review
Free shipping on orders over $29.99

$22.42

$ 10 .99 $10.99

In Stock
  • Robust and durable - Heat treated and case hardened to HRC 57-62. Made of precision-grade tool steel hardened and ground on all 6 sides of block
  • Precise - Accuracy and squareness on all sides within 0.0001-0.0002
  • Feature - Cross drilling design gives minimum weight and maximum strength
  • 23 holes consists of 5 tapped holes that are 3/8-16 for clamping and 18 untapped holes Cross drilling design allows for efficient use of lower weight with maximum strength
  • Package includes - 2 x matched pair 1-2-3 set up blocks


Product Description

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James S. Van Scoyk
2025-08-21 18:02:33
I use them for building model airplanes. I use them as weights and for square blocks to hold things square while glue dries. Quality is good. I have 4 sets of them and they are all identical.
BT
2025-08-17 20:36:18
Nice finish and precision engineering. Good heavy weight and worked perfectly for my needs.
John Dexter
2025-07-24 15:59:05
I build craftsman building kits for my model railroad. These are great for getting walls at right angles. I’m not sure how I built without them!
Terry Flowers
2025-05-31 18:15:37
Bought these to check calibration of a depth micrometer. Won’t work as they are not as accurate as advertise.
Customer
2025-01-11 10:36:13
Excellent for aligning kit components during assembly!
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