3 Inch DTH drilling bit: WOOKE30, DHD3.5, MISSION30, BR3,3.5N
Hole range: Ø90-ø110 mm Commonly used dia.: Ø90, ø100, ø105 mm Bit head design and selection: 1. Flat front srical Application: For drilling in hard and abrasive rock. 2. Flat front srical + ballistic Application: For drilling in medium-hard to hard and moderately abrasive rock. 3. Convex front srical + ballistic Application: For drilling in medium-hard and moderately abrasive rock. 4. Convex front ballistic Application: For drilling at high penetration rates in non abrasive rock. 5. Concave front srical Application: For drilling in medium-hard, minimum hole deviation control.
DTH Drill Bit for Rock Mining:
· Button Shape: Srical, Ballistic, Convex, Concave
· Bit Shank: WOOKE, QL, SD, DHD, MISSION, BR, etc.
· Mainly used for quarrying, ore mining, coal mining, soft, medium-hard, and hard rock, blast hole drilling and water well drilling project, marble quarry or well drilling and other construction projects, geological exploration, etc.
· Our cemented carbide buttons have very good wear-resistant, can be ground time after time and have a longer service life. Using the specially processed formula, our carbide buttons can meet requirements of various rocks.
· Buttons are strong in the mining process, ensuring long service lifetime.
· A lot of grades can be chosen according to different applications.
· Exactly suggestion for the button used for soft, medium-hard, and hard rocks. Durable performance, wear resistant and withstanding large impacting force.
· Very good prices according to market situation.
· Short delivery time.
· The best and reliable after-service
About Payment
We accept T/T (Telegrac Transfer) or L/C at sight
Packaging Details
DTH ( Down The Hole) bits package: wooden case or carton case
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