This standard specifies straight shank drills (hereinafter referred to as drills) used for drilling holes for soldering (general purpose).
JIS B 4301:2007 Referenced Document
JIS B 0171 Twist drills.Terms, definitions and types*， 2014-09-22 Update
JIS B 0401-2 Geometrical product specifications (GPS) -- ISO code system for tolerances on linear sizes -- Part 2: Tables of standard tolerance classes and limit deviations for holes and shafts*， 2016-03-22 Update
JIS B 4313 High-speed steel two-flute twist drills -- Technical specifications*， 2008-03-20 Update
JIS G 4403 High speed tool steels*， 2022-05-20 Update