Rock drill head

Details Rock drill head Rock drill head

E - Fixed Constructions

21

B

E21B 10/36 (2006.01) E21B 17/046 (2006.01)

Patent

CA 2413947

A drill head for rock drilling comprising cutting edges made of hard material, which is detachably connected axially, over a bearing surface, with a drilling shaft with at least one radially projecting driver blade by a bayonet-type connection slot, wherein at least one connection slot is present, which forms two axially opposing undercuts, within which the driver blade has limited axial movement. 8

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