ISO 494:1975被替代
Parallel shank twist drills - Long series
出版：International Organization for Standardization
专家解读视频
AS 2438-1981 - Equivalent
NS 5327 Ed. 1 (1973) - Similar
NFE 66 068:1965 - Equivalent
DIN 340 (2006-11) - Identical
NBN E 66 105:1982 - Identical
BS 328-1:1993 - Identical
DIN 340 (1978-03) - Identical
KS B ISO 494:2003 - Identical
GB/T 6135.3-2008 - Modified
BS 328-1:1986 - Similar
