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BSI - BS 328-1

Drills and reamers Part 1. Specification for twist drills

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Organization: BSI
Publication Date: 31 March 1986
Status: inactive
Page Count: 49
ICS Code (Drills, countersinks, reamers): 25.100.30
scope:

Dimensions and tolerances for parallel shank, jobber, stub, long and extra long series of twist drills. Also for Morse taper shank and Morse taper shank extra long drills. Tables summarise both imperial and metric sizes for each type of drill.

Document History

BS 328-1
April 15, 1993
Drills and reamers - Part 1: Specification for twist drills
Dimensions and technical requirements.
BS 328-1
April 15, 1993
Drills and Reamers Part 1: Specification for Twist Drills
A description is not available for this item.
BS 328-1
March 31, 1986
Drills and reamers Part 1. Specification for twist drills
Dimensions and tolerances for parallel shank, jobber, stub, long and extra long series of twist drills. Also for Morse taper shank and Morse taper shank extra long drills. Tables summarise both...
BS 328-1
December 22, 1959
Twist Drills and Combined Drills and Countersinks
Dimensions, tolerances for parallel shank jobber series, stub, parallel shank long series twist drills and for Morse taper shank drills, core drills. Tables of inch and metric sizes; tables for each...

References

This document references:
ISO 3292 - Extra-long parallel shank twist drills
Published by ISO on October 15, 2016
This International Standard specifies the dimensions of extra-long parallel shank twist drills in the range of 2 mm to 14 mm diameter with an overall length range of 125 mm to 400 mm.
This document references:
ISO 235 - Parallel shank jobber and stub series drills and Morse taper shank drills
Published by ISO on November 1, 2016
This document specifies the dimensions of the following three types of drills: a) parallel shank drills, stub series; b) parallel shank drills, jobber series; c) Morse taper shank drills. It...
This document references:
ISO 494 - Cylindrical shank twist drills - Long series
Published by ISO on February 1, 2017
This document specifies the dimensions of cylindrical shank twist drills having working lengths in the long series. The cylindrical shank jobber and stub series drills and Morse taper shank drills...
This document references:
ISO 3291 - Extra-long Morse taper shank twist drills
Published by ISO on November 1, 2016
This International Standard specifies the dimensions of extra-long Morse taper shank drills in the range of 6 mm to 50 mm diameter with an overall length range of 200 mm to 630 mm.
This document references:
ISO 4957 - Tool steels
Published by ISO on June 1, 2018
This document specifies requirements for the following grades of wrought tool steels: a) non-alloy cold-work tool steels; b) alloy cold-work tool steels; c) alloy hot-work tool steels; d) high-speed...
This document references:
BS 1660-4 - Machine Tapers Part 4: Spindle Noses and Tool Shanks with Self-Release 7/24 Tapers
Published by BSI on May 31, 1989
Dimensions in millimetres of 7/24 tapers and equipment for manual changing. Specifies external diameter and position of front face of the collar with respect to the taper in the case of attachment by...
This document references:
BS 1660-1 - Machine Tapers - Part 1: Specification for Shanks and Sockets with Self-Holding Tapers (Morse and Metric 5 %)
Published by BSI on January 31, 1992
Specifies dimensions of tapers for use on small tools where the tools may be used in applications with or without coolant supplies.
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