- No. of Blocks – 81pc
- Made of the highest quality tool steel
- Surface hardness: HRC 64
- Grade AS-2 (B) (+/- 50 millionths)
- With fitted wooden case with sizes labeled
Blocks Included: 9 Blocks: .1001″ thru .1009″ step of .0001″, 49 Blocks: .101″ thru .149″ step of .001″, 19 Blocks: .050″ thru .950″ step of .050″, 4 Blocks: 1.000″ thru 4.000″ step of 1.000″.
Meets or exceeds Federal GGG-G-15C.All calibration conforms to:MIL-STD 45662A, GGG-G-15C, ISO/IEC 17025 Accredited, ISO 9000, 10012-1, ANSI-NCSL Z540-1, ISO GUIDE 25 Certified. Complete with manufacturer’s calibration or certificate.








