Diager Ultimax SDS-Max Hammer Drill Bits



  • 3 carbide tips with self-centering point.
  • 6 cutting edges.
  • Progressive flute.
  • Compatible SDS-max shank.
  • Listed as Diameter x Flute Length x Overall Length.


  • Drills hard rocks
  • Improved Chiselling effect due to its 6 contact points head geometry design
  • High clearance volumes for a faster drilling
  • Jamming risks limited thanks to the combination of the head geometry and the helix
  • Long service life time


  • Rock, concrete, stone, granit, brick
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More Material
Flex exerted in the lower section of a drill bit is the most likely destructive factor. The progressive core of the spiral adds material and increases the rigidity in this area which is subjected to extreme pressure.


Anti-blocking System
6 asymetric cutting edges reduce the risk of blockage when in use on a particularly hard aggregate, or on rebar.The progressive core and the roundness of the flute allow optimal removal of dust and negates any risk of blocking due to dust accumulation.


Heat Treatment
The hardness of concrete combined with the power of the drill unite to create compression. The heat treatment of the body allows the energy of the drill to be concentrated on the tungsten carbide tip (whilst absorbing shock waves).