The Q7 Tapered Button Bit (7 Teeth) is specifically designed for hard and abrasive rock formations. With 7 premium tungsten carbide buttons, it offers more contact points than standard 5 or 6-button bits, ensuring smoother operation and significantly longer service life in granite and basalt mining.
As a leading exporter to Australia, South Africa, and the USA, Topking uses special heat treatment technology to prevent button breakage. The Q7 model is your best choice when durability is the priority.
💡 Hard Rock Solution
Drilling hard rock is tough. Breaking it is even tougher.
Expert Tip: After drilling with Q7 bits, use
Topking Expansive Mortar (HSCA)
to crack the hard rock silently. It's safer and cheaper than explosives.
Product Specifications:
Model: Q7 Tapered Button Bit
Button Configuration: 7 Buttons (High Wear Resistance)
Bit Diameter: 32mm - 48mm
Taper Degree: 4°46’, 6°, 7°, 11°, 12°
Connection Shank: Hex 19mm, Hex 22mm, Hex 25mm
Skirt Type: Normal Skirt / Long Skirt

(Topking Q7 Bit: 7-button design for hard rock)
TAPER DRILL BIT SIZES & CHARTS



Recommended Products: