Hole Saws & Core Bits

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6 Item(s)

  • Diamax Cyclone Turbo Core Bits - Wet/Dry

    Diamax Cyclone Wet/Dry Turbo Core Bits

    $75.23 to $81.73
    Shipping: Free w/ $49 Order
    The 1-1/4" and 1-3/8" Cyclone Turbo Core bits are a high performing wet/dry diamond core drill bit in an economy package and feature side protection with mini "T" segments.
  • RockMaster Smooth Cut Continuous Rim Diamond Hole Saw Bits - Wet/Dry

    RockMaster™ Smooth Cut Continuous Rim Diamond Hole Saw Bits - Wet/Dry

    $47.98 to $129.04
    Shipping: Free w/ $49 Order
    The RockMaster Smooth Cut Continuous Rim Diamond Hole Saw Bits are perfect for drilling holes though a wide variety of stone and tile when an exceptionally smooth, clean cut is required.
  • RockMaster Wet/Dry Diamond Hole Saw Bits

    RockMaster™ Diamond Hole Saw Bits - Wet/Dry

    $22.50 to $41.54
    Shipping: Free w/ $49 Order
    RockMaster Diamond Hole Saw Bits are fast cutting bits designed for drilling through granite, marble, porcelain and ceramic tile, and natural stone. Designed for a 3/8" or 1/2" drill.
  • Alpha High-Speed Dry Core Bit

    Alpha High-Speed Dry Core Drill Bits

    $97.15 to $141.53
    Shipping: Free
    Alpha High-Speed Dry Core Drill Bits are designed for use on drills and grinders with 5/8” -11 spindles and are ideal for dry coring granite & engineered stone.
  • Diamax Cyclone Wet/Dry Core Drill Bits

    Diamax Cyclone Wet/Dry Core Drill Bits

    $60.97 to $114.75
    Shipping: Free
    Diamax Cyclone Wet/Dry Core Drill Bits feature specially designed T-segments that increase durability and minimize segment loss. Perfect for use in the field when water is not an option.
  • Diamax Cyclone Diamond Core Bit w/ Side Protection

    Diamax Cyclone Wet/Dry Diamond Core Bits w/ Side Protection

    $73.95 to $79.45
    Shipping: Free
    The Diamax Cyclone Wet/Dry Bit features diamond side protection on outside and inside of the bit shaft for a long lasting durable core bit perfect for use in the field where water might be scarce.

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6 Item(s)

Diamond hole saws and core bits can either be operated on a drill with a 3/8" or 1/2" chuck, or a variable speed grinder.  Drills will typically be a single speed, ranging from 500-1,200RPM.  Running a diamond hole saw or core bit on a drill will cut material slower than a variable speed grinder, but are safe for operating most sizes up to 4" (maximum safe speed for 4" bits is 1,000 RPM).

Variable speed grinders allow for faster cutting of material.  However, when running a diamond hole saw or core bit on a variable speed grinder or polisher, the RPM you use will depend on the size of the bit.  Optimal RPM speed for faster cutting for bits that are 1" or smaller is 4,000 RPM.  Optimal RPM speed for bits 1-1/8" - 3" is 1,300-2,000 RPM.  Standard 4" and 5" variable speed grinders start at 3,000 RPM, so if you have larger bits that require lower speeds, you may use a 7" to 9" variable speed grinder with a starting RPM of 600-900.