Johnson Tools Manufactory Co.,Ltd


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Home ProductsDiamond Core Drill Bits

M14 Thread Diamond Core Drill Bit 60mm , Marble Drill bits

M14 Thread Diamond Core Drill Bit 60mm , Marble Drill bits

    • M14 Thread Diamond Core Drill Bit 60mm , Marble Drill bits
    • M14 Thread Diamond Core Drill Bit 60mm , Marble Drill bits
    • M14 Thread Diamond Core Drill Bit 60mm , Marble Drill bits
  • M14 Thread Diamond Core Drill Bit 60mm , Marble Drill bits

    Product Details:

    Place of Origin: CHINA
    Brand Name: JOHNSON TOOLS
    Certification: GB, SGS
    Model Number: BGB60, BGB(UNC)60

    Payment & Shipping Terms:

    Minimum Order Quantity: 50pcs
    Price: Negotiate
    Packaging Details: Plastic box, Paper box
    Payment Terms: L/C, T/T, Western Union
    Supply Ability: 1000pcs per month
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    Detailed Product Description
    Materials: Metal Bond Application: Granite, Marble, And Other Stones
    Size: 60mm Connector Type: 1/2" Shaft Or M14 Thread
    Machine:: Core Drilling Machines Or Hand Machines Segment Type: Normal Segment Type

    60mm Diamond Core Drill bit for drilling Stone, 1/2" Shaft or M14 Thread


    1. Core drilling thinner applications of stone, including granite, marble, sandstone, limestone, and so on.
    2. Premium grade core bits that deliver fast drilling speed and extend product life.
    3. Use application with core drilling machines and hand drills.
    4. Production strictly according to customer requirements.
    5. Size could be customized.


    1. Usage: With water application
    2. Processing Technology: silver welded
    3. Applications: Stone drilling
    4. Segment type: Flat segment
    5. Delivery time: Around 20-30days


    Details spec.:

    Item No. Diameter Segment Dimension Teeth No.  Connection Type
    mm Height Thickness
    BGB60 60 8 3 7 1/2" Shaft
    BGB(UNC)60 60 8 3 7 M14



    How dose a diamond core bit work?


    A diamond core bit does not cut but works by milling. During the sharpening process performed at the factory, individual diamond crystals are exposed on the face and sides of the segment and it is these that do the milling work. The metal matrix holds each diamond in place. During the work, each diamond is supported by a comet’s tail which strengthens the supporting action of the bond immediately “behind” the diamond crystals.

    A diamond tool properly suited to the material to be cut, the equilibrium between the work of the diamond and the abrasion-resistance of the bond is optimum; the diamond is held in place until it is destroyed and new crystals appear. It is in this equilibrium that all the quality of the diamond tool resides.

    A core bit intended for cutting hard, dense (less abrasive) materials requires a softer segment bond. This wears out more rapidly, by replacing the worn diamonds relatively quickly so that the blade continues to cut.

    Otherwise, for cutting soft, abrasive materials must have a hard, abrasion-resistant segments in order to retain the diamonds longer.


    M14 Thread Diamond Core Drill Bit 60mm , Marble Drill bits 



    1) Can you company accept OEM?
    We accept OEM orders for all products, as well as buyers' logos.

    2) Quality Control?
    Each product is strictly checked by of QC dept. We have completed file data in our computer which listed the whole processing of each order. Once the quality of sample order confirmed by clients, we will keep the same formula in the following orders. 15years producing experience, we will bring the most suitable products based on different markets.

    3) Shipping Methods?
    Air Freight when gross weight is above 45kg and less than 100kg. Fast delivery
    Sea Freight when the gross weight is above 100kg. Cheaper freight charge.
    Courier (TNT, DHL, FedEx, Ups, etc). Small try order, door to door service.
    4) Minimum Order and Delivery?
    Minimum order: negotiable.
    Delivery: 15 to 45 days. Based on the quantity per order.

    Contact Details
    Johnson Tools Manufactory Co.,Ltd

    Contact Person: Vida

    Send your inquiry directly to us (0 / 3000)

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