规格 Specification (mm) | 工作面平面度向对面平行度 Flatness of working surface & parallelism of opposite surfaces | 工作面间垂直度 Squareness between working surfaces | 每对平行规H.W等长之差 Tolerance of h & w between a matched pair |
精密等级Precision grade (μm) |
00级 | 0级 | 00级 | 0级 | 00级 | 0级 |
160x25x16mm | 1.5 | 3 | 20 | 40 | 1.5 | 3 |
250x40x25mm | 2 | 4 | 30 | 60 | 2 | 4 |
400x63x40mm | 4 | 8 | 40 | 80 | 4 | 8 |
630x100x63mm | 6 | 12 | 50 | 100 | 6 | 12 |
◇ 可替代等高块，用于测量零件的平行度，成对供应。
◇ Alternative for blocks, used to measure the depth of parallelism of parts.
◇ 平行规分a、b两种。a为4工作面，b为2工作面。
◇ Each specification has "a" and "b" type. "a" means 4 working surfaces and "b" means 2 working surfaces.
