DTH Hole Opener- DTHO-D312-D216

Rock drilling tools manufacturer Bloom DTH hole opener bits are manufactured from the highest quality aircraft alloy steel. Which are used to enlarge the size of a pilot hole most commonly for Blast hole drilling, Quarrying, DTH Drilling, Water Well Drilling, Oil Drilling, Construction, Foundation Drilling.

ProDrill offers a wide size of DTH hole opener bits, Guide diameter scope from 95mm – 311mm, Reamed diameter scope from 130mm – 444.5mm, DTH hammer size from 3.5’’, 5 ‘’, 6’’, 8’’, 12’’ with all industry DTH hammer shanks for a match.

DTH hole opener with dome buttons.

Rock drill bits advantages :

(1) Wear pads, back reamer buttons, and or buttons on the pilot can be added for an additional fee.

(2) The ability to use less powerful equipment than that required to drill the large diameter hole.

(3) Straighter holes result from the smaller pilot hole.