Changsha Sollroc Engineering Equipments Co., Ltd
                                                                                                           
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20 Years
Since 2006
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4''-115mm DTH Drill Bit with 1 Year Warranty and Heat Treatment for High Performance Drilling

Price Negotiable
Price: $100
MOQ: 1
Delivery Time: Negotiable
Brand: SOLLROC
Product Description
Down the Hole/Button Bits/4''-115mm DTH Bit
Sollroc manufactures and supplies high-quality DTH bits using superior raw materials and efficient machinery. These sturdy bits are designed for high-pressure drilling rigs and are available in various technical specifications at competitive industry rates.
Technical Parameters
Bit Diameter Flushing Holes No.*Button Dia.mm Weight (Kg)
115 mm | 4 1/2" Gauge Buttons: 2 * 18
Front Buttons: 7*14
7*13 8.5
Product Features
Bit Face Shape Selection:
  1. Concave Face: Ideal for medium-hard, homogeneous rock formations. Provides excellent hole deviation control and efficient flushing capacity.
  2. Convex Face: Delivers high penetration rates in soft to medium-hard formations with low to medium air pressures. Offers superior resistance to steel wash while reducing load on gauge buttons, though with less hole deviation control.
  3. Flat Face Bit: Designed for hard to very hard, abrasive rock formations in high air pressure applications. Combines good penetration rates with resistance to steel wash.
Shipping & Package
Shipping: Available by Air, Sea or Express
Package: Ply-wooden cases + Pallet
Product Images
4''-115mm DTH Bit close-up view 4''-115mm DTH Bit technical diagram 4''-115mm DTH Bit side view 4''-115mm DTH Bit angled view
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Company Changsha Sollroc Engineering Equipments Co., Ltd
Location No55. Jiucaiyuan road, Furong District, Changsha, Hunan,China
Contact Person Ling Bo

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