High Precision: This 1-2-3 block set has a surface finish of 6-16", parallelism of 0.0002"/1", and hardness of 55-60 HRC with the dimensional accuracy of 0.0001"/1"
Easy Clamping Holes: Block set with a total of 5 tapped and 18 untapped thru holes for easy clamping and set-up
High Precision: This 1-2-3 block set has a surface finish of 6-16" parallelism of 00002"/1" and hardness of 55-60 HRC with the dimensional accuracy of 00001"/1"