Drill Rod
View specifications →Models in This Range
23 models in this range, each with a full specification sheet. Configurations and air packages are quoted against your job.
PDC core drill bit for medium-hard formations.
View specifications →QL40 High Air Pressure DTH Drill Bit for Rock Drilling The QL40 high air pressure DTH drill bit is designed
View specifications →QL40A High Air Pressure DTH Drill Bit for Hard Rock Drilling The QL40A high air pressure DTH drill bit is designed.
View specifications →QL50 High Air Pressure DTH Drill Bit for Hard Rock Drilling The QL50 high air pressure DTH drill bit is designed
View specifications →QL60 High Air Pressure DTH Drill Bit for Large-Diameter Rock Drilling The QL60 high air pressure DTH drill bit
View specifications →QL80 High Air Pressure DTH Drill Bit for Large-Diameter Hard Rock Drilling The QL80 high air pressure DTH drill bit.
View specifications →High air pressure DTH bit · Ø108/115/127 mm head
View specifications →High air pressure DTH bit · Ø140/146/152 mm head
View specifications →High air pressure DTH bit · Ø154/165/171 mm head
View specifications →High air pressure DTH bit · Ø190/195/203 mm head
View specifications →High air pressure DTH bit · Ø108/115/127 mm head
View specifications →High air pressure DTH bit · Ø140/146/152 mm head
View specifications →High air pressure DTH bit · Ø108/115/127 mm head
View specifications →High air pressure DTH bit · Ø154/165/171 mm head
View specifications →High air pressure DTH bit · Ø203/216/230 mm head
View specifications →CIR65 Middle-Low Air Pressure DTH Button Bit for Small-Diameter Drilling The CIR65 middle-low air pressure DTH button.
View specifications →CIR70 Middle-Low Air Pressure DTH Button Bit for Small Rock Drilling The CIR70 middle-low air pressure DTH button bit.
View specifications →CIR90 Middle-Low Air Pressure DTH Button Bit for Rock Drilling The CIR90 middle-low air pressure DTH button bit
View specifications →CIR110 Middle-Low Air Pressure DTH Button Bit for Rock Drilling The CIR110 middle-low air pressure DTH button bit
View specifications →BR1 Middle-Low Air Pressure DTH Button Bit for Small-Diameter Rock Drilling The BR1 middle-low air pressure DTH.
View specifications →BR2 Middle-Low Air Pressure DTH Button Bit for Rock Drilling The BR2 middle-low air pressure DTH button bit
View specifications →BR3 Middle-Low Air Pressure DTH Button Bit for Rock Drilling The BR3 middle-low air pressure DTH button bit
View specifications →About the drill bits and tools
Tooling is where drilling cost is actually decided. A bit that is slightly too hard for the formation blunts slowly and drills slowly; one that is slightly too soft drills fast and wears out. This range covers DTH bits in the QL, SP, SD and CIR shank families, PDC core bits, and drill rods and adapters — specified against the hammer and the rock rather than sold as a generic consumable.
Typical applications
- DTH blasthole drilling — Bits matched to the hammer shank and to the rock abrasiveness.
- Core exploration and grade control — PDC and impregnated core bits for recovered core in mineral exploration.
- Water well and geothermal completion — Bits sized to the casing programme and the hammer in use.
- Anchor and foundation holes — Button bits for short holes in hard rock and reinforced concrete.
- Rod strings and adapters — Drill rods, subs and adapters matched to the rig and the hammer thread.
How it works
A DTH bit transfers the piston impact into the rock through tungsten carbide buttons set in a steel head. Button shape, count and protrusion are chosen for the rock: hard and abrasive rock needs more, smaller buttons in a flatter face; soft and fractured rock needs fewer, larger buttons with a more pronounced face. The head gauge determines hole diameter, and the shank determines which hammer the bit fits.
- Face shape and button layout should follow the rock, not the price list.
- Gauge buttons set the hole diameter; worn gauge buttons make an undersize hole and a stuck bit.
- The shank must match the hammer exactly — a forced fit damages both.
How to specify the right model
Tell us the hammer model and the rock description first. Bit selection is a two-variable problem: the shank decides what fits, the rock decides the face and button layout.
- Confirm shank type against your hammer before ordering any bit.
- Match head diameter to the hole range of the hammer, not to the nominal hole size alone.
- Choose button layout by rock type: harder and more abrasive rock generally suits more buttons with a flatter face.
- For core work, specify the core diameter and the recovery requirement rather than only the hole size.
Frequently Asked Questions
Which bit fits my hammer?
Match the shank designation. SP, QL, SD, BR and CIR are different standards; a bit from one family will not fit a hammer from another. Send us the hammer model and we will confirm the exact bit.
How do I choose button layout for my rock?
Describe the rock — hardness, abrasiveness, whether it is massive or fractured. Hard abrasive rock generally needs more, smaller buttons; soft or fractured rock needs fewer, larger ones.
Do you make custom bit sizes?
Non-standard head diameters and shank combinations can be produced to order. Send the drawing or the specification and we will confirm feasibility and lead time.
Do bits come with the hammer?
Bits can be quoted together with hammers, or separately if you already have the hammer. Both are matched to the same shank standard.
How do I choose between the 23 models in this range?
Start with the hole diameter and depth you need, then check the transport and site dimensions against the specification table. Every model in this range has its own detail page with the full datasheet; if two models look close, send us the job details and we will tell you which one we would quote.
Tell Us About Your Site
Send us your geology, hole diameter and target depth.