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    OML Diamond logo

    0800 665 342 | 48 Waverley Rd. 4183 Napier | info@omldiamond.com

    SHIBUYA core drilling OML Diamond

    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

    Most popular OML core drill configurations
    COMBO

    Professional quality

    COMBO

    Cutting Speed : High
    Life : Long
    Sizes : 50 to 400mm

    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

    CDX

    Industrial quality

    CDX

    Cutting Speed : Good
    Life : Good
    Sizes : 50 to 300 mm

    Segments : 10 mm pointed segments

    CDX Standard spec laser welded for economical drilling (CDX is fully imported, limited diameters).

    A good combination of speed and life at an economical price.

    Full Crown

    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

    Crown Standard core drill bit

    Professional quality

    Crown - Standard

    Cutting Speed : Good
    Life : Good
    Sizes : 13 - 45 mm

    Standard delivers a good balance of speed and life in soft to hard reinforced materials.

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    CDHS

    CDP

    Crown LL core drill bit

    Professional quality

    Crown - LL

    Cutting Speed : Good
    Life : Long
    Sizes :  12 - 45 mm

    LL delivers longer life and is often used on slower RPM rigs

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    CDHS

    CDP

    Crown A-Type core drill bit

    Professional quality

    Crown - A-Type

    Cutting Speed : High
    Life : Medium
    Sizes : 13 - 45 mm

    A-Type delivers the fastest drilling of steel reinforcing

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    CDHS

    CDP

    Asphalt

    Cutting Speed : Good
    Life : Long
    Sizes : 50 to 600mm

    Segments : 10 mm

    Long life and accurate in abrasive material.

    Industrial quality

    ASPHALT

    XD

    Cutting Speed : Very High
    Life : Good
    Sizes : 50mm to 250mm

    Segments : 12 mm pointed segments

    Diamond placement technology ensures smooth and fast drilling of hard to soft reinforced concrete at low feed pressure.

    Professional quality

    XD

    Pro-S

    Cutting Speed : Very good
    Life : Very long
    Sizes : 50 mm to 250 mm

    Segments : 10 mm pointed

    Long life drilling at very good speed. Suitable for soft material to very hard reinforced concrete. Extremely versatile and tough professional drills.

    Professional quality

    Pro-S

    A-type

    Cutting Speed : High
    Life : Long
    Sizes : 50 to 600mm

    A very good combination of high cutting speed and good life on a wide variety of drilling machines.

    Professional quality

    A-Type

    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

    • Custom-made Core Drills
    • Size Charts
    • Small diameters
    • Large diameters
     
     

    SMALL DIAMETERS 12 - 45 mm O.D.

    MOST POPULAR CORE DRILL CONFIGURATIONS

    LARGE DIAMETERS >50 mm

     
    W-type

    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