BS 2556:1973
Current
The latest, up-to-date edition.
Specification for hand and breast drills
Hardcopy , PDF
English
31-10-1973
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Cooperating organizations
Foreword
Specification
Section one. General
1. Scope
2. Classification and terms
3. Thread fits
Section two. Hand drills
4. Materials
5. Hardness
6. Gears
7. Dimensions
8. Accuracies
9. Thread
10. Assembly
11. Finish
12. Frame strength
13. Performance
Section three. Breast drills
14. Materials
15. Hardness
16. Gears
17. Dimensions
18. Accuracies
19. Thread
20. Assembly
21. Finish
22. Frame strength
23. Performance
Tables
1. Materials for hand drills
2. Materials for breast drills
Figures
1. Typical hand drill (showing open type frame)
2. Typical breast drill
3. Typical malleable iron or steel open frame for
hand drills
4. Typical cast iron frame for hand drills
5. Typical semi-closed frame for hand drills
6. Typical cast iron frame for breast drills
7. Typical aluminium alloy frame for breast drills
Relates to hand drills with a capacity up to 8 mm and breast drills with a capacity up to 12.5 mm and specifies dimensions, materials and assembly.
| Committee |
MTE/15
|
| DevelopmentNote |
Supersedes 71/32388 DC (06/2005) Reviewed and confirmed by BSI, January 2011. (12/2010)
|
| DocumentType |
Standard
|
| Pages |
20
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
This British Standard specifies the dimensions, materials, assembly and quality of hand drills and breast drills.
It relates to hand drills with a capacity up to 8 mm and breast drills with a capacity up to 12.5 mm.
NOTE The titles of the British Standards referred to in this standard are listed on page 14.
| Standards | Relationship |
| UNE-ISO 302:2021 | Identical |
| DEFSTAN 51-11(PT28)/2(1993) : 1993 | HAND TOOLS, GENERAL PURPOSE - PART 28: (A): MISCELLANEOUS ITEMS (B): HAND TOOLS FOR USE IN HAZARDOUS OR CRITICAL CONDITIONS |
| BS 3643(1963) : LATEST | |
| BS 310:1972 | Specification for blackheart malleable iron castings |
| BS 309:1972 | Specification for whiteheart malleable iron castings |
| BS 970-1(1972) : 1972 | |
| BS 1224:1970 | Specification for electroplated coatings of nickel and chromium |
| BS 2590-1:1969 | Specification for powder metallurgical products (P.M. products) Sintered metal components for general engineering purposes |
| BS 1490:1970 | Specification for aluminium and aluminium alloy ingots and castings |
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