Drill Bits
Nupress offer a range of standard and custom drilling and reaming solutions in both carbide and PCD.

- Machined from solid hardened and tempered high tensile steel.
- Machined to suit strata conditions.
- Positive, Negative and Neutral Rake angles.
- PCD diamond for difficult drilling.
- Threaded drive, Square drive and RE drive shank combinations available.
- Sizes from 27mm ? 44mm in M16 drive. This offers a considerable cost and time advantage as 22mm hex drill steels can be used for holes up to 44mm in diameter.
Key Features
The most difficult task in any engineered product is to bring together the design intent with an engineered solution. Nupress realises the time and cost impact of these two parameters and for that reason has developed a full circle solution.
- Manufactured from solid homogeneous heat treated bar.
- High tolerance / high output capability.
- Low cost.
- Machined seat for carbide insert.
- Patented technology for manufacture.
Advantages of Machined Bodies
- No wing breakage.
- CNC precision tolerances.
- Faster drill penetration rates.
- Better carbide adhesion to machined tip seat.
- Reduce reject volumes.
Benefits
- Rake angles and other dimensions can be altered to suit drilling conditions.
- These R & D bodies can be produced in low quantities for a fraction of the cost associated with investment casting.
- Reduce production costs.
- Increased profits.
Independent Testing
The results of our independent testing show that generally when a roof section is being bolted the operators of the drill rig have reduced the penetration speed of the drill. This is done to minimize the risk of drill failure. Our testing shows that a reduction in penetration rate is not necessary due to the increased strength of our bodies. We now have drill body technology available that is compatible with today’s carbides and drilling machines.
PCD Diamond Bits
Nupress offer a range of standard and custom drilling and reaming solutions in PCD. PCD offer a low energy solution where friction ignition and gassy seams are of concern. PCD bits use multi flush technology where if 1 flushing hole gets blocked cooling water still gets to the tips. PCD bits and reamers can be custom manufactured to suit a wide range of applications and systems.
Reamers

- Button Reamers for spot facing up to 350mm diameter
- Pilot reamers for use behind a drill bit.
- PCD Reamers
Key Features
- Manufactured from solid homogeneous heat treated bar.
- High tolerance / high output capability.
- Low cost.
- Machined seat for carbide insert.
- Patented technology for manufacture.
Advantages of Machined Bodies
- No wing breakage.
- CNC precision tolerances.
- Faster drill penetration rates.
- Better carbide adhesion to machined tip seat.
- Reduce reject volumes.
Benefits
- Rake angles, number of teeth and other dimensions can be altered to suit drilling conditions.
- These R & D bodies can be produced in low quantities for a fraction of the cost associated with investment casting.
- Reduce production costs.
- Increased profits.
Independent Testing
The results of our independent testing show that generally when a roof section is being bolted the operators of the drill rig have reduced the penetration speed of the drill. This is done to minimize the risk of drill failure. Our testing shows that a reduction in penetration rate is not necessary due to the increased strength of our bodies. We now have drill body technology available that is compatible with today’s carbides and drilling machines.
