DHD3.5-95mm DTH Hammer Drilking Drill Bit For Well Drilling

DTH (Down-The-Hole) Hammer Bit: A drilling tool designed to work with a DTH hammer, where compressed air delivers impact energy directly to the bit while rotating.

Model Breakdown:

• DHD3.5: Indicates compatibility with DHD3.5-series hammers (e.g., Atlas Copco DHD350, Sandvik DHD3.5)
• 95mm: Bit diameter (3.74 inches), defining the hole size

Key Components:

• Bit Head: Equipped with tungsten carbide buttons for rock crushing
• Shank: Features a standardized thread (e.g., DHD350 thread) to connect to the hammer
• Flushing Holes: Channels for compressed air to remove drill cuttings

• Impact + Rotation: The DTH hammer strikes the bit while it rotates, crushing rock efficiently
• Air Flushing: Compressed air exits through the bit's flushing holes, clearing debris
• Button Engagement: Tungsten carbide buttons indent and fracture rock with each blow

• Mining & Quarrying: Blast hole drilling in granite, limestone
• Water Wells: Deep well drilling in hard rock layers
• Geotechnical Engineering: Foundation drilling, soil sampling

Recommended for:

• High-impact drilling (100-350 blows per minute)
• Deep holes (100m+ depths)

• High Penetration Rate: Direct energy transfer = faster drilling
• Long Service Life: Tungsten carbide resists abrasion
• Standard Compatibility: Fits major DHD3.5 hammers (Atlas Copco, Sandvik)
• Precision Drilling: Maintains hole straightness in hard rock

• Match Thread Type: Confirm DHD3.5/DHD350 thread compatibility
• Button Layout: More buttons = better durability in hard rock