Fowler Steel Rectangular Gage Block Set 81 piece set - Grade 0 Each block is rectangular steel and hardened to 65RC, stress relieved, lapped to accurate size, parallelism and flatness, then carefully inspected and marked for size; designed to meet close tolerances Each set includes standard sizes found in more expensive sets. Each block individually serialized; conforms to rigid standards of the National Institute of Standards & Technology Price includes fitted wood case Included in this set... 9 Blocks .1001" thru .1009" in .0001" steps 49 Blocks .101" thru .149" in .001" steps 19 Blocks .050" thru .950" in .05" steps 4 Blocks 1.000" thru 4.000" in 1" steps
