Shank Mimimum Hole Size Number of Splines Mincon DTH Hammer(s)
QL80 200mm 7 7/8" 16 MP80, MQ80*
DHD380 200mm 7 7/8" 10 8DH
SD8 200mm 7 7/8" 8 8DHSD
* QL bits for MQ hammers should be ordered as MQ bits to avoid having to remove the foot valve from the drill bit.