1-2-3 Blocks
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Colton Industrial Tools 10078 | High Precision 1-2-3 Block Set 23 Holes and Cap Bolts
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Colton Industrial Tools 10075 | Magnetic 123 Blocks, Ultra Precision Matched Set
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Colton Tools 1-2-3 blocks give machinists a dependable reference for setup, layout and inspection work. This category includes a high precision 23-hole block set with cap bolts and an ultra precision matched magnetic 123 block set, so you can choose the configuration that fits your shop. Browse the listings above to compare both options and read more about each set.