
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.
CUSTOM-MADE
CORE DRILLS
Call us on 0800 665 342
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.
FULL CROWN
Professional quality
Cutting Speed : Excellent
Life : Very good
Value: Higher initial cost
Sizes : 50 mm to 250 mm
2 bonds available :
. PURPLE for hard aggregates and/or heavy steel
. GREEN for medium reinforced concrete
STANDARD FINISHED CORE DRILL DIMENSIONS

SEGMENTED
core drills

CROWN
core drills
* lenghts to 2000 mm
SMALL DIAMETERS 12 - 45 mm O.D.
MOST POPULAR CORE DRILL CONFIGURATIONS
LARGE DIAMETERS >50 mm
Cutting Speed : Extreme
Life : Lower
Sizes : 50 to 400 mm
Segments : 9 mm high segments
Extremely fast drilling at low feed pressure. Ideal for lower powered drills and rapid drilling with handheld drills.
Professional quality
W-Type
2 bonds available :
. PURPLE for hard aggregates and/or heavy steel
. GREEN for medium reinforced concrete