CUSTOM-MADE
CORE DRILLS
OML assemble and retip core drills in our NZ workshops. A wide variety of diamond options are available to produce the ideal cutting speed and tool life to suit customers individual requirements and applications.
Our tests show we offer much better drilling solutions. Find out just how big the advantage is.
Call us on 0800 665 342
STANDARD FINISHED CORE DRILL DIMENSIONS
SEGMENTED
core drills
CROWN
core drills
* lengths to 2000 mm
MOST POPULAR CORE DRILL CONFIGURATIONS
SMALL DIAMETERS 12 - 45 mm O.D.
Professional quality
Crown - Pro
Our Purple and Green spec drills deliver outstanding speed through reinforcing and hard or softer concretes.
Drill life is also very good.
Most suitable for hand held drills and higher speed small to medium powered rigs.
Cutting Speed : Rapid
Life : Very good
Sizes : 13 - 45 mm
CDHS (Green) - standard length 400mm
CDP - (Purple) - standard length 450mm
Available same day or overnight up to 1200mm
Longer lengths available by request.
CDHS
CDP
Professional quality
Crown - LL
LL delivers longer life and is often used in more abrasive materials or on slower RPM rigs
Cutting Speed : Good
Life : Longer
Sizes : 13 - 45 mm
CDHS - standard length 400mm
CDP - Standard length 450mm
Available same day or overnight up to 1200mm
Longer lengths available by request.
CDHS
CDP
CCB Laser segmented
Professional quality
CCB features extendable barrel lengths. Additional barrels can be screwed together for deeper holes.
Thicker barrels and drill tips provide stronger drills which can be used on small to big rigs and run very straight.
Cutting Speed : Fast
Life : Long
Sizes : 28, 30, 34, 40, 46mm.
300mm barrel lengths add 270mm drilling depth.
Often use for overdrilling and deep holes up to 2 meters.
CDP
LARGE DIAMETERS : 50 to 650mm
Industrial quality
CDX
Cutting Speed : Good
Life : Good
Sizes : 50 to 250 mm
Segments : 10 mm pointed segments
Length : 450mm
CDX Standard spec laser welded for economical drilling. CDX is fully imported.
A good combination of speed and life at an economical price.
A-Type
Professional quality
A very good combination of high cutting speed and good life on a wide variety of drilling machines.
Cutting Speed : High
Life : Long
Sizes : 50 to 650mm
2 bonds available :
. PURPLE for hard aggregates and/or heavy steel
. GREEN for medium reinforced concrete
W-Type
Professional quality
Extremely fast drilling at low feed pressure. Ideal for lower powered drills and rapid drilling with handheld drills.
2 bonds available :
. PURPLE for hard aggregates and/or heavy steel
. GREEN for medium reinforced concrete
Cutting Speed : Extreme
Life : Lower
Sizes : 50 to 650 mm
Segments : 9 mm high segments
Pro-S
Professional quality
Long life drilling at very good speed. Suitable for soft material to very hard reinforced concrete. Extremely versatile and tough professional drills.
Cutting Speed : Very good
Life : Very long
Sizes : 50 mm to 300 mm
Segments : 10 mm pointed
XD
Professional quality
Diamond placement technology ensures smooth and fast drilling of hard to soft reinforced concrete at low feed pressure.
Cutting Speed : Very High
Life : Good
Sizes : 50mm to 250mm
Segments : 12 mm pointed segments
Professional quality
COMBO
COMBO has more segments for less jamming and longer life without sacrificing speed
2 bonds available :
. PURPLE for hard aggregates and/or heavy steel
. GREEN for medium reinforced concrete
Cutting Speed : High
Life : Long
Sizes : 50 to 650mm
FULL CROWN
Professional quality
The Full Crown fills the rim with segments for trouble free drilling at high speed, even in heavy conditions. This design will often drill easily where other core drills jam on slow down.
2 bonds available :
. PURPLE for hard aggregates and/or heavy steel
. GREEN for medium reinforced concrete
Cutting Speed : Excellent
Life : Very good
Value: Higher initial cost
Sizes : 50 mm to 250 mm
ASPHALT
Industrial quality
Long life and accurate in abrasive material.
Cutting Speed : Good
Life : Long
Sizes : 50 to 650mm
Segments : 10 mm