A drill lip and a drill bit assembly including a leading end 16 to which a drill tip 10 is fixed by bonding. The drill tip 10 has a top cutting edge 12, a pair of side cutting edges 13, a bottom edge 20 and a pair of parallel side walls 26 extending between the respective edges. The leading end 16 being arranged to support the drill tip 10 along the bottom edge 20 and against the parallel side walls 26. The drill bit 10 including a bore 15 extending axially therethrough and opening into the leading end 16 and the drill tip 10 extending across the We 15 but permitting egress of flushing liquid from the bore 15 a the leading end 16. The drill tip 10 being arranged to cooperate with an engagement face 25 formed at the leading end 16 to locate the drill tip 10 in a bonding position relative to the leading end 16 prior to bonding of the drill tip 10 to said leading end 16. The cooperation being such as to resist shifting movement of the drill tip 10 along the bottom edge 20 away from the bunding position.
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