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ISO 3438:2013
New product
ISO 3438:2013 Subland twist drills for holes prior to tapping screw threads
standard by International Organization for Standardization, 05/01/2013
More info
Full Description
ISO 3438:2013 specifies the dimensions of subland twist drills with Morse taper shanks and cylindrical shanks for holes prior to tapping screw threads.
The drills are designed to produce holes prior to tapping metric threads (coarse pitch series) over a selected range of:
M8 to M30 for subland twist drills with Morse taper shanks;M3 to M14 for subland twist drills with cylindrical shanks.ISO 3438:2013 complements ISO 2306.