Magnum hydraulic hand held core drill range

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Magnum hydraulic hand held core drill range


Our Magnum hydraulic hand held core drill range provide unrivalled power for both wet & dry drilling applications. Despite their power there is little or no kick or snatch due to the in-built pressure / torque limiting valve. 

Limited to a maxium hydraulic flow of 20ltr / min and 150 Bar. The Magnum comes with a heavy duty metal case, Magnum side handle and a drill drive adaptor (1.1/4.IN.UNC-M to 1/2.IN.BSP-M)

We sold our first Magnum in 1990 and the basic design has not really changed to this day.

Proudly designed, developed and manufactured here at Xcalibre Coventry, England. 

Benefits & Features

  • Four sizes of unit available, each with different rotary speeds.
  • Hose connection to drill motor is positioned on the top of the Magnum out of the way of the operator.
  • Robust construction with no fragile electrical components making the Magnum range very low maintenance.
  • Low noise and high performance with increased diamond core bit life.
  • Hydraulic operation allows the unit to be used in underwater applications.
  • Quiet and spark free operation makes the Magnum ideal for use in hazardous environments, like petrol stations.
  • Little or no kick or snatch due to the in-built pressure / torque limiting valve.
  • Standard 60mm collar for use with many different types of drill stands. Like our DS140 or our Simplex stand on drill stands.
  • Compatible with our Magnum drill chuck adaptor for drilling applications.
  • Can be used on machines with a power take off facility.
  • Safe and powerful.
  • Hand/Arm Vibration: When free running only 0.6m/sec r.m.s.
  • Our Magnums are CE Registered.
  • Proudly designed and manufactoured in Coventry, England.

Available Options

Select Units: US Metric
rpm max Magnum 5+ 600 rpm
Magnum 10+ 1000 rpm
Magnum 15+ 1500 rpm
Magnum 24+ 2400 rpm
Hydraulic flow max 20 l/min5.3 gal/min
Recommended hydraulic pressure 70 - 92 bar1000 - 1330 psi
Oil working temperature 25 - 80°C77 - 176°F
Max. back pressure in return line 14 bar200 psi
Max. power output 3.6 kw4.8hp
Dimensions (L x W x H) 420 x 90 x 200 mm16.5 x 3.5 x 7.9 in
Mag 5+ drill bit diameter (Asphalt) 127 - 202 mm5 - 8 in
Mag 5+ drill bit diameter (Concrete) 70 - 162 mm2.7 - 6.3 in
Mag 10+ drill bit diameter (Asphalt) 90 - 127 mm3.5 - 5 in
Mag 10+ drill bit diameter (Concrete) 40 - 70 mm1.5 - 2.7 in
Mag 15+ drill bit diameter (Asphalt) 45 - 90 mm1.7 - 3.5 in
Mag 15+ drill bit diameter (Concrete) 25 - 50 mm0.9 - 1.9 in
Mag 24+ drill bit diameter (Asphalt) 14 - 45 mm0.4 - 1.7 in
Mag 24+ drill bit diameter (Concrete) 12 - 25 mm0.4 - 0.9 in
Weight 8 kg17.6 lbs



Fitting telecommunication ducts into existing manholes it is now mandatory that diamond drilling is used to cut the holes so that the structure of the manhole is not damaged (by using breakers as an example). 

Electric drills are not acceptable due to the potential presence of explosive gases and the wet environment, air drills can be used, however a large towable air compressor is needed, the drills are normally underpowered and need in-line oilers and water filters, these are generally not maintained resulting in an unacceptably high level of breakdowns and poor inconsistent drilling performances.

However the magnum 5 (600 rpm@20l/min) for hard concrete and brick or the magnum 10 (1000 rpm@20l/min) for softer concrete and brick are ideal for this type of work. They can be powered by small portable petrol or diesel powered hydraulic power packs and provides a small portable set up suited to these works. 

Using 65 mm ( 21/2") and the 107 mm (4") diamond core bits with 5 and 8 segments respectively very fast drilling speeds can be achieved. 

Examples are a 107 mm (4") diameter hole 225 mm (9") deep in brick in less than 3 minutes or less than 15 minutes in hard reinforced concrete. 

The magnum can be used to drill any angle to match the incoming duct and because of it's compact design works well in the cramped conditions found in these manholes.

Underwater drilling


There are a host of examples of the magnum being used underwater, the hydraulic power packs are parked on a barge or structure above the water and the hoses are dropped down to the under water drilling position. 

The magnum has been used for example, to drill fixing holes on pier refurbishment and on oil extraction structures. 

When drilling larger diameter holes under water it is advisable to mount the magnum on a drill stand bolted to the structure - divers find it difficult to apply pressure to a drill because of the effects of buoyancy and currents.

Despite being under water, water flushing is still required for the diamond drilling process to clear away the abraded material from the cutting face.

Inverted Drilling

Inverted or upside down drilling on for example bridges or on ceiling beams normally presents a serious problem for diamond drilling. The cooling water tends to flow back down onto the drill damaging electric motors and providing a potential for electric shocks. Whilst various ways of controlling the water can be tried, none are completely effective. 

The Magnum is completely unaffected by water and is thus the ideal drill to use in these situations. One of many examples is a specialist diamond drilling contractor who was required to drill 28 mm ( 1.1" ) holes upside down in a concrete beam for the installation of fixing bolts. The contractor used a Magnum 24 ( 2400 RPM ) powered from an 8 HP petrol driven hydraulic power pack, the hoses were fed through a window leaving the fumes and noise outside the building.

Drilling larger holes upside down is tiring and we recommend the use of a drill stand if large numbers of larger holes are to be drilled. The same Magnum can be used to drill the fixing hole for the drill stand and then mounted in the stand and the larger holes drilled.


Holes are often required in bridges for fixing down railings or just to take samples of the structure for laboratory testing. As an example a government civil engineering laboratory needed to know the thickness of certain critical parts of bridges in their region to enable them to calculate the bridge's load bearing capacity. The laboratory technicians used a Magnum 15 ( 1500 RPM ) powered by a hydraulically powered coring trailer which they had freely available and drilled 25 mm ( 1") diameter holes to 1 M ( 3 ft ) deep in reinforced concrete bridges to find the thickness of the structure whilst minimising any damage caused by the drilling.

Worldwide, our Magnum range is well-trusted and has been used in many different industry sectors for example:-

Construction & civil engineering, diamond cutting companies, tool hire companies, pipe manufacturers, diamond drillers, telecommunication installers, safety fencing installers, plumbers, mechanical and electrical installers, marine industry, laboratory test houses, building contractors, civil engineering contractors, aviation, motorway maintenance, and road the testing industry.