SPI 6 Rule with Reference Table – 13-970-9
SPI 6" Rule with Reference Table - 13-970-9 Stainless steel, 6" measuring range Reference table for machinists, toolmakers, mechanics, etc. Front: Tap drill sizes recommended for 75% depth of thread Back: Decimal equivalents table in 64ths from 1/64 to 63/
$10.36
$12.95
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