Kinex 4 Piece Set of Solid Machinist Square 2-3/8", 3", 4", 6" (60, 75, 100, 150 mm) DIN 875/1
This is a 4 piece set of precision machinist square made by Kinex Measuring who has been in the business of making quality and accurate measuring tool since 1906. The set included a 2-3/8" (60mm), 3" (75mm), 4" (100mm), and 6" (150mm) square. These squares are perfect for the professional machinist, meticulous wood worker, or DIY perfectionist. Each square is made from 2 pieces of tool steel. The bases and blades are riveted together with 2 pins producing a strong and invisible joint. All faces and edges are ground and lapped for straightness and parallelism. Manufactured to strict German DIN 875/1 standards and guaranteed square to within 18 microns or 0.0007" (that's seven ten-thousandths of an inch). Comes in a padded box. Includes signed inspection certificate.
German manufacturing squareness tolerances for Din 875/1
| Height | Deviation |
| 50 mm | 0.00055” |
| 75 mm | 0.00055” |
| 100 mm | 0.00059” |
| 150 mm | 0.00070" |
| 200 mm | 0.00078” |
| 250 mm | 0.00090” |
| 300 mm | 0.00098” |
| 500 mm | 0.00137” |
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