DTH OPENER BIT
DTH Hole Openers are used to increase the size of a pre-drilled hole with hammer drilling .
It may sometimes be necessary to drill a large hole employing a small hammer.
Hole openers are splined for all popular hammers in a wide range of sizes.
Tungsten carbide buttons on the cutting face and carbide gauge
buttons on the pilot face provide faster cutting.
STAROCKDRILL 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.
STAROCKDRILL 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 matching.
Advantages:
1.USED TO INCREASE THE SIZE OF A PRE-DRILLED HOLE AGAINST HAMMER
2. DRILLING A LARGE HOLE WITH SMALL HAMMER
3.No wasting the pre-drilled hole
How to order:
Bit Shank + Head Diameter + Reamed Hole Diameter
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- +86-15910895290
- +86-371 8891 6559
- +86-15910895290
- info@starockdrill.com
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