127mm Core Drill Bits

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Diamond core drill bits in 127mm, which is exactly 5 inches. A popular choice for 110mm soil pipe when you want extra room to seal around the pipe. Every 127mm core we stock is compared below.

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DDM150 Heavy Duty Diamond Drill Marcrist Diamond Drill Marcrist DDM150-1S Diamond Core Drill 110V - Hand-Held Dry Core Drilling Machine up to 150mm

    Marcrist DDM150-1S Diamond Core Drill 110V - Hand-Held Dry Core Drilling Machine up to 150mm

    Minimises repetitive strain and hard work The outstanding power-to-weight ratio of 1900 watts to 4.0 kg. Minimises repetitive strain and hard work with less than 85 dB(A) the quietest diamond drill on the market Ø 45 mm - 152 mm diamond drilling capacity in...
    £150.00
    £433.85
    £150.00

    Precision Drilling for Concrete, Stone & Masonry

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    Buying guide

    127mm core drill bits compared

    Core bit Type Length Best for
    Marcrist DCU350 Dry (slotted) 165mm Brick, block and soft to medium masonry
    Marcrist DCU550 Dry 165mm Brick and block up to Class B engineering brick
    Marcrist DCU750X Dry 165mm Brick, block, concrete and stone
    Marcrist PC850 Dry or wet, percussion drills 165mm Brick, block and concrete from a percussion drill
    Marcrist CCU850X Dry or wet 165mm Reinforced concrete, granite and engineering brick
    Marcrist PG850V Wet - 20-30mm vitrified porcelain and outdoor ceramics

    127mm or 117mm for a soil pipe?

    A 110mm soil pipe leaves about 8.5mm each side in a 127mm hole, compared with about 3.5mm in a 117mm hole. The bigger hole is easier to line up and seal; the smaller one needs less making good. For 125mm ducting, 127mm is a very tight fit, so a 132mm core gives more clearance.

    Dry or wet core?

    Dry cores (DCU350, DCU550, DCU750X, PC850 and CCU850X) cut without water, so with dust extraction there is no slurry to clean up indoors. The PC850 also runs from a percussion drill. Wet cores (the WCU and WF850X ranges) need a water feed, are the usual choice for heavily reinforced concrete and are often used on a drilling rig. The CCW850X is a semi-wet core that needs only a little water.

    Other popular sizes: 38-42mm, 52mm, 107mm, 117mm and 152mm. Or browse all diamond core drill bits and core drill sets.

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