BBA 69 metal drilling assortment

Suitable for construction steel to a tensile strength of 1000 N/mm², cast iron, non-ferrous metals, in hand and pillar machine

• High stability and fracture resistance
  • Made of HSS steel blank
• Accurate drill holes
  • The drill bit is smoothed and grounded to ensure precision in drilling
  • The special split point diamond shape means pre-centering force does not need to be exerted on the workpiece and makes perfect round holes
  • The point angle is 130° thanks to the split point that assures centering point also with this large tip angle
  • The drill does not crash because the external diameter gradually becomes smaller from the tip to the shank
  • High stability and reduced vibration
  • The diameter of the core is increasing in the direction of the shaft
• The entire working length of the drill is regrindable