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T38 89mm Dome Carbide Retractable Thread Button Drill Bit For Underground Long Hole Drilling

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T38 89mm Dome Carbide Retractable Thread Button Drill Bit For Underground Long Hole Drilling

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MOQ : 10PCS

Delivery Time : 7-15 Days

Skirt Type : Retractable / standard dual optional design

Compatibility : MF extension rods, MM rods and heavy duty top hammer drills

Price : Please Contact Us

Carbide Style : Dome shaped

Packaging Details : Wooden Boxes , Cardboard Boxes

Model Number : Q12-T38-89

Overall Diameter : 89mm

Payment Terms : T/T

Drill Face Type : Flat, single sided, centered optional

Supply Ability : 3000 PCS Per month

Drainage Structure : 2 front drain holes

Brand Name : HLDRILL

Product Model : Q12-T38-89

Certification : ISO 9001 Certified

Overall Length : 155mm

Place of Origin : CHINA

Button Configuration : 12mm*12 gauge buttons + 11mm*2 front buttons

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T38 89mm Dome Carbide Retractable Thread Button Drill Bit For Underground Long Hole Drilling

Henglong Rock Drilling Tool Factory delivers high precision T38 threaded button drill bit, a core top hammer drilling tool tailored for underground tunneling, bench drilling and long hole rock drilling projects. Optimized for medium and hard rock formations, this 89mm drill bit features a retractable skirt and flat drill face, perfectly compatible with mainstream top hammer drilling rigs and extension rods for stable and efficient rock drilling operations.

Core Product Specifications

We adopt standardized industrial craftsmanship and strict structural design to ensure consistent product performance and strong adaptability for various drilling scenarios.

  • Product Model : Q12-T38-89
  • Overall Diameter : 89mm (available in 64mm / 76mm / 89mm optional sizes)
  • Overall Length : 155mm
  • Button Configuration : 12mm*12 gauge buttons + 11mm*2 front buttons
  • Skirt Type : Retractable / standard dual optional design
  • Carbide Style : Dome shaped (ballistic and semi ballistic customizable)
  • Drill Face Type : Flat, single sided, centered optional
  • Drainage Structure : 2 front drain holes for smooth slag discharge
  • Compatibility : Fully matched with MF extension rods, MM rods and heavy duty top hammer drills
  • Applicable Set : 12pcs complete T38 thread drill bit sets available
Product Advantages

Different from ordinary drill bits, our T38-89 threaded drill bit focuses on durability, drilling accuracy and cost performance, solving common points of fast wear, poor slag discharge and hole deviation in mining drilling.

  • Premium Wear Impact Resistance : Made of high strength alloy steel and high hardness dome tungsten carbide inserts, effectively resist impact and friction of hard rock, reduce carbide shedding, and extend service life greatly.
  • Stable Accurate Drilling : Centered flat drill face design suppresses hole deviation effectively, ensures straight drilling holes, improves blasting and tunneling quality, ideal for precise long hole drilling.
  • Efficient Slag Heat Dissipation : Dual front drain holes optimize flushing efficiency, quickly remove rock slag and reduce bit heat accumulation, avoiding drilling jamming and tool damage.
  • Strong Universal Compatibility : Standard T38 thread structure fits all mainstream heavy duty top hammer rigs and extension rod series, easy to install and disassemble, no extra adaptation cost.
  • Flexible Scenario Adaptation : Retractable skirt design adapts to complex underground working conditions, suitable for underground excavation, bench drilling and deep long hole drilling in mines, quarries and tunnel projects.
Application

This T38 89mm threaded button drill bit is widely applied in underground mine tunneling, quarry bench drilling, rock anchoring and long hole blasting drilling. It works stably for medium hard to hard rock strata, being a cost effective core tool for industrial rock drilling projects.


Product Tags:

89mm Dome Carbide Button Drill Bit

      

Retractable Thread Button Bit

      

Underground Long Hole Drilling T38 Button Bit

      
Buy cheap T38 89mm Dome Carbide Retractable Thread Button Drill Bit For Underground Long Hole Drilling product

T38 89mm Dome Carbide Retractable Thread Button Drill Bit For Underground Long Hole Drilling Images

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