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Ultra Precision Plastic Blocks 0.0001 Review

3

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Average

Revainrating 3.5 out of 5  
Rating 
3.3
📏 Calibration, 🔍 Test, Measure & Inspect

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Description of Ultra Precision Plastic Blocks 0.0001

[Design]: 23 holes includes 5 holes tapped to 3/8-16 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. [Material]:Heat treated and case hardened to HRC 56-60. Made of precision-grade tool steel hardened and ground on all 6 sides of block. [Accuracy]:Squareness: .0001"; Parallelism: +/- .0001"; Height Accuracy in Pair: +/-.0001.

Reviews

Global ratings 3
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  • 4
    1
  • 3
    0
  • 2
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  • 1
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Type of review

Revainrating 1 out of 5

Great value in dimensional calibration

I used to have the more expensive 1 2 3 blocks and used them but left them in the garage and they were too rusty to salvage. I bought these as a cheaper replacement and they are the same quality as my previous ones (which cost me twice as much) and came in a case with screws and an Allen key to assemble them into a larger block if needed. Each block was greased and carefully wrapped in industrial grade VCI paper to keep it from rusting during shipping and storage, which was a nice touch. I keep

Pros
  • Easy installation
Cons
  • There are more interesting options.

Revainrating 4 out of 5

Good for the price but not perfect

I just got these to work today and the first thing I did was test them with a 0.0001 inch display. The blocks were square with a draft of less than 0.0001 inch. all edges. The 1,000 and 3,000 edges were perfect, but 1 of the 2,000 sides was 0.001 inches long, so they don't match (at least not until I override the oversized block in the spec). I've tried screwing them together and the edges vary between .002 and .004 inches depending on the direction, so again far from "corresponding". But for…

Pros
  • Great construction
Cons
  • Crumpled packaging

Revainrating 5 out of 5

At least 0.0005 inch accuracy - perfect for hobbyists

At least 0.0005 inch accuracy - perfect for hobbyists At least 0.0005 inch according to my Mitutoyo Digimatic caliper (same resolution). Both sides have the same dimensions on all parallel sides. While I didn't specifically measure the parallelism, since measurements in several different areas all showed within 0.0005 inches, it's safe to say that both blocks are parallel to within that degree. Pros: - Fairly accurate block pair, 0.0005 inch in all measurements. .- Quality body for blow…

Pros
  • GOLS certified
Cons
  • Only available in black