PRECISION 4-6-8 BLOCK SET---2PCS/SET
- PRECISION GROUND AND
- HARDENED ON ALL SIDES.
- BLOCKS ARE MACHINED
- WITHIN 0.0002” AND
- MEASURED 4”X6”X8”
- IDEAL FOR MOUNTING
- WORK FOR PRECISION, GRINDING AND LAYOUT
- FLATNESS 0.0002”.,
- SQUARENESS 0.0003”.
- PARALLELISM 0.0003”. SIZE 0.001”.
- HARDNESS 56 TO 60 RC. IN FITTED CASE