1/4-20 unc 2b tap drill size 148297-1/4-20 unc 2b tap drill size
To determine the proper drill size for 75% thread on a special pitch tap use the following formula Drill Size = Major Diameter (975 divided by the number of threads per inch) For example, with a 1/432 tap, 250" 0305 = 2195 (7/32" or #2 drill size)Size DIA Close Fit NonStruct (1/64 OS) 080UNF 3/ No 53 5/64;Home > THREAD MILLS > UNC/UNF STANDARD THREAD MILLS > COATED UNC/UNF STANDARD THREAD MILLS > 1/4 Carbide Thread Mill 1/4 Carbide Thread Mill Previous in COATED UNC/UNF STANDARD THREAD MILLS 1/4 2B GO/NOGO PLUG GAGE SET WITH HANDLE & CERTS (C6D2B1) Your Price $7573 Mae Ufl Edu Designlab Online resources Files Fastener Handout Pdf 1/4-20 unc 2b tap drill size