Dual mark SWG and SAE.SWG: 0-36 standard, inch scale: 0.3125" - 0.007"
29 Holes measurement: 29-hole sizes remain constant, providing precision accuracy; The drill sizes in both inches and decimal equivalents, equivalents range from 1/16 inch to 1/2 inch by 1/64 inch, come with clearly marked fractions and decimal for accurate measurement
Made of stainless steel, miniature and light weight,
