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7-tooth 11-degree long shank button bit for high-speed rock drilling
Product Specifications
Diameter
32mm
Taper
11°
Length
70mm
Carbide Dimension
2×7mm, 5×7mm
Weight
0.25kg
Water Holes
2 on front, 1 on side
Skirt Design
Standard
Carbide Brand and Grade
YG9C, YG10C, YG11C
Steel Grade
42CrMo
Key Features & Benefits
11-Degree Cutting Angle for Powerful Penetration
The 11-degree tapered tooth angle enables high-speed drilling with deeper rock penetration. While steeper angles can increase vibration in shorter bits, the long shank design mitigates this risk, preventing wobbling and ensuring precise hole alignment.
Optimized 7-Tooth Cutting Head Design
Precisely engineered to balance drilling speed and tool lifespan. With fewer teeth than 8-tooth alternatives, each tooth applies greater cutting force for faster rock breakage and improved efficiency.
Long Shank Design for Stable Deep Hole Drilling
The extended shank, crafted from high-strength 42CrMo alloy steel with uniform cross-section, resists bending under heavy torque and lateral stress. This maintains alignment even in deviated drilling paths for reliable deep hole operations.
HENGLONG is an internationally recognized and leading producer of superior percussive rock drilling tools.Our high performance products include top hammer drill bits extension and tunneling rods,integral and tapered rods,shank adapters,coupling,drag bits,blast furnace tapping tools,self dr... HENGLONG is an internationally recognized and leading producer of superior percussive rock drilling tools.Our high performance products include top hammer drill bits extension and tunneling rods,integral and tapered rods,shank adapters,coupling,drag bits,blast furnace tapping tools,self dr...