Masonry crown drill fi 80 mm. Crown drill equipped with six cutting inserts made of high-quality carbideós, brazed into the steel body with brass. 13 mm hexagonal shank terminated with M-16 thread .

Crown depth approx. 50 mm. Centrally located replaceable pilot drill fi 8 mm. Outer surface spirally milled for better drainage of material from the drilled hole.

Designed for professional work in setting electrical installation boxes in brick or concrete walls.

Usage warnings: