China King-Long Brand Rock Drilling Tools
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Long Hole Drilling Extremely Hard Rock Button Bits
Type of Products:
Long Hole Drilling Extremely Hard Rock Button Bits BitsFlushing Groove:
A. Designed to remove cuttings more efficiently.
B. Deeper and larger grooves provide smooth flushing and removes material faster
C. Provides longer tool life.
Retrac Button Bits Head Dia: 64mm, 70mm, 76mm.89mm, 102mm
Thread At Bit End: R, T, ST, GT Threads.
Bit Head Design:
A. Designed the popular LATERAL section of bit head.
B. Shortened bit head has faster penetration time
C. LATERAL bit head reduces drilling time.
A. Design of button layout and location
B. Optimized rock breakage with each turn of the bit
C. offer longer tools life.
A. Continuous improvements and new tungsten carbide grades
B. For a variety of ground conditions, we offer a variety of tungsten carbide grades and shapes.
Carbide shape variety
Round :Utility carbide shape. Strong configuration against carbide fracture
Semi ballistic Combined wear resistance and high penetration rate. Recommended for medium- hard rock with moderate abrasitivity.
Ballistic: Higher penetrating carbide shape than Semi ballistic shape. Recommended for soft rock.
Spike: Highest penetrating carbide shape. *Weak configuration against carbide fracture. Recommended for soft to medium- hard rock.
Flushing Hole Variety
V: Face flushing hole, normal flushing hole design.
W: Face and side flushing hole, effective in case of plugged face flushing hole.
S: Straight Skirt, normal bit skirt design.
R: Retrac Skirt, retrac wings help to guide the bit in and out of the hole. Effective in straight hole drilling.
Photograph of Long Hole Drilling Extremely Hard Rock Button Bits