Rotary Drill Bit Selection
Blast Hole Drilling Solutions
Standard Open Bearing Bits (Air Circulation):
Optimal for open-pit mining operations. Air cools bearings and clears debris efficiently for consistent performance across blasthole campaigns.
Sealed Bearing Bits:
Extended-life options for challenging ground:
- Semi-Sealed: O-ring protection against dirt ingress for extended bearing life
- Sealed Roller Bearing: Pressure-compensated systems with advanced lubrication for premium performance
- Sealed Journal Bearing: Floating bush design for maximum durability in abrasive formations
Exploration & Specialized Drilling
Robust, precision-engineered starter pipes designed for secure hole collaring and reliable string integration.
Reverse Circulation (RC) Bits
Safer, low-pressure drilling options designed for sample collection and exploration work.
Claw Bits
Replaceable cutter design optimized for soft ground conditions, reducing material waste and extending tool life
Down-The-Hole (DTH) Hammers & Bits
4"–8" range with flat, convex, and concave face options for versatile drilling applications
Rock Formation Compatibility Guide
Choose the right bit for your ground. Summit’s Rock Formation Series is engineered across the complete spectrum of geological conditions:
S-Series (Soft)
- Formation Type: Soft / Very Soft Rock
- Compressive Strength: 20 – 110 MPa
- Ideal Applications: Sand, Mudstone, Shale, Limestone, Gravel
M-Series (Medium)
- Formation Type: Medium Hard Rock
- Compressive Strength: 90 – 150 MPa
- Ideal Applications: Granite, Hard Sandstone, Marble, Dolomite
H-Series (Hard)
- Formation Type: Hard / Very Hard Rock
- Compressive Strength: 150 – 400 MPa
- Ideal Applications: Quartzite, Taconite, Banded Iron, Magnetite
Maximize Your Production
Keep your operations running at peak efficiency with our high-quality drilling consumables. Designed to minimize failures and downtime, our products help you get more hours per shift, reduce costs, and boost overall productivity