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BL-123 Pair of 1" x 2" x 3" Precision Steel 1-2-3 Blocks

4.8 out of 5 stars 1,022 ratings

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Original version
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  • 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) 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" x 2" x 3", 2.1 lbs. weight
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Product description

Color:Original version

1 Matched Pair Ultra Precision 1-2-3 Blocks 23 Holes .0001" Machinist 123 Jig


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Color:Original version

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Customer reviews

4.8 out of 5 stars
4.8 out of 5
1,022 customer ratings
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Reviewed in the United States on October 27, 2016
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164 people found this helpful
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Reviewed in the United States on March 31, 2018
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Reviewed in the United States on September 29, 2017
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Reviewed in the United States on August 22, 2017
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Reviewed in the United States on December 4, 2016
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Reviewed in the United States on June 26, 2019
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Reviewed in the United States on October 28, 2016
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Reviewed in the United States on February 17, 2015
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Top international reviews

Frank Opinion
5.0 out of 5 stars Bargain
Reviewed in the United Kingdom on July 27, 2019
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KMINA
5.0 out of 5 stars Worthwhile Purchase
Reviewed in the United Kingdom on August 12, 2019
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DAVID N. ROBERTSON
5.0 out of 5 stars As described second hand cleaned up well.
Reviewed in the United Kingdom on June 18, 2019
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Jill B.
5.0 out of 5 stars Excellent
Reviewed in the United Kingdom on June 5, 2019
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Amazon Customer
5.0 out of 5 stars Exceptional value
Reviewed in the United Kingdom on July 4, 2019
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Gennari G.
5.0 out of 5 stars Da riprendere
Reviewed in Italy on January 17, 2020
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Cliente Amazon
5.0 out of 5 stars BL-123, un paio di acciaio di precisione
Reviewed in Italy on April 29, 2019
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jorge beltran sanchez
5.0 out of 5 stars cubos de precision
Reviewed in Mexico on April 20, 2019
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Frederic bernhard
4.0 out of 5 stars Bon produit
Reviewed in France on May 25, 2019
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Ernst Roeggla
5.0 out of 5 stars BL-123
Reviewed in Italy on August 21, 2019
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