Specification for hand and breast drills

Míreanna comhchosúla

• Specification for rotary drill rods and tungsten carbide tipped rotary drill bits
  de réir: 8096 British Standards Institution
• Flameproof hand-held electric drilling machines primarily for use in mines
  de réir: 8096 British Standards Institution
• Specification for twist drills and combined drills and countersinks
  de réir: 8096 British Standards Institution
• Portable drilling jig for hand drill /
  de réir: Naqib Abd Razak, 1995-, author, et al.
  Foilsithe / Cruthaithe: (2018)
• Portable drilling jig for hand drill /
  de réir: Naqib Abd Razak, 1995-, author, et al.
  Foilsithe / Cruthaithe: (2018)