Starrett Weber Gauge Block Set 81 pcs Model RS81.A1, Steel, Certificated NIB Q Street The numbers on the templates

The numbers on the templates indicate the letter height in thousandths of an inch

It weighs 25lbs

and it's got a nice build quality

Comes with an integral lock but the key is long lost

and heel protectors

Starrett Weber Gauge Block Set 81 pcs Model RS81.A1, Steel, Certificated NIB Q Street The numbers on the templatesI am the original owner and I purchased it in 2001 and never used them on a job I bid and lost. These have been in my temperature controlled inspection room, unopened and unused for 25 years. System of Measurement Inch Shape Rectangle Gauge Block Grade 0 Number of Pieces 81 Manufacturer Model Number RS81. A1 Includes 19 blocks in sizes 0. 050" to 0. 950" in 0. 05" increments 49 blocks in sizes 0. 101" to 0. 149" in 0. 001" increments Four blocks in