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This set contains fractional, letter and number gages, offering a quick, accurate way to check drill and rod sizes. These industrial quality gages are plated and heat treated and made of high quality steel with a satin chrome finish.
- Fractional gage has 29 measuring holes for determining twist drill sizes from 1/16 to 1/2 inch in 1/64-inch increments. Shows drill sizes in inches and decimal equivalents
- Letter type gage is used to select or check drill sizes from A to Z. Each gage hole is marked by letter and decimal equivalent from .234 to .413 inch diameter.
- Number gage tells at a glance the correct size tap drill for machine screw tap in NF (National Fine) or NC (National Coarse) thread series. Shows the correct body size drill to use. 60 sizes, with number and decimal equivalent of drill at each hole.
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