Precise 36 Piece Steel Rectangular Gage Block Set

Grade 0 (2)tolerances = 4, -2 millionths.

Each block is steel and hardened to 65RC, stress relieved, lapped to accurate size, parallelism & flatness, then carefully inspected and marked for size designed to meet close tolerance.

• Each set includes standard sizes found in more expensive sets.
• Grade 0 (2) tolerances = 4, -2 millionths.