McMaster-Carr logo
    Filter by
    System of Measurement
    Drill Bit Size
    Industrial Info Compare
    Attribute Image
    Shank Size
    Attribute Image
    Thread Size
    Industrial Info Snippet
    Bit ID
    Decimal Size Equivalent
    Sold As
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    Maximum Drilling Depth
    Attribute Image
    Overall Length
    Attribute Image
    Bit Style
    Drill Bit Point Type
    Flute Direction
    Performance
    Point Angle
    Industrial Info Snippet
    Attribute Image
    Forward
    Enter e-mail addresses in the fields below
    Message
    Cancel
    Print
    How can we improve?
    Comments
    E-mail address (if you would like a response)
    10 Products
    About Drill Bits
    industrial info icon

    Compare material, finish, length class, and decimal size equivalents.

    Material

    Performance

    Shank Type

    Changeable-Size Carbide-Tipped Core Drill Bits for Masonry and Concrete

    Instead of investing in multiple bits, change the bit body to drill a different-sized hole. These hollow bits remove a large core of material from concrete, brick, and masonry for installing pipe and conduit. The carbide tip resists wear and heat to stay sharp. Bits include a pilot drill to make starting holes easier.
    SDS-Max Shank for Hammer and Rotary Drilling
    Image of Product. Front orientation. Drill Bits. Changeable-Size Carbide-Tipped Core Drill Bits for Masonry and Concrete, SDS-Max Shank for Hammer and Rotary Drilling.
    Image of Specification. SDS-Max Shank. Front orientation. SDS Max Shank.

    SDS-Max

    Shank

    The slotted shank is compatible with SDS-Max-drive rotary hammers. These bits use simultaneous rotary and hammering action to penetrate material. Also known as percussion or impact bits.
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Specs. Met
    Includes
    Each
    Uncoated
     
    Standard Point
    4 1/2"
    		4.5"
    		17"12"ANSI B212.15Pilot Drill3084A9220000000
     
    Accessories and Replacements for Drill Bits
    Changeable Bit Bodies
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Component
    Specs. Met
    Each
    Uncoated Carbide-Tipped Steel
    4 1/2"
    		4.5"
    		5"Bit BodyANSI B212.153084A560000000
     
    Extensions, Replacement Shanks and Replacement Pilot Drills
    Each
    6" Overall Length Extension3084A59000000
    12" Overall Length Extension3084A6300000
    18" Overall Length Extension3084A64000000
    SDS-Max Shank3084A12100000
    Pilot Drill for Changeable-Size Masonry Core Drill Bit3084A5800000
    Spline Shank for Hammer and Rotary Drilling
    Image of Product. Side1 orientation. Drill Bits. Changeable-Size Carbide-Tipped Core Drill Bits for Masonry and Concrete, Spline Shank for Hammer and Rotary Drilling.
    Image of Specification. Spline Shank. Front orientation. Spline Shank.

    Spline

    Shank

    The shank has 12 splines for use with a spline-drive rotary hammer, which rotate and hammers bits simultaneously to penetrate material. Also known as percussion or impact bits.
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Specs. Met
    Includes
    Each
    Uncoated
     
    Standard Point
    4 1/2"
    		4.5"
    		17"12"ANSI B212.15Pilot Drill3084A8220000000
     
    Accessories and Replacements for Drill Bits
    Changeable Bit Bodies
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Component
    Specs. Met
    Each
    Uncoated Carbide-Tipped Steel
    4 1/2"
    		4.5"
    		5"Bit BodyANSI B212.153084A560000000
     
    Extensions, Replacement Shanks and Replacement Pilot Drills
    Each
    6" Overall Length Extension3084A59000000
    12" Overall Length Extension3084A6300000
    18" Overall Length Extension3084A64000000
    Spline Shank3084A13200000
    Pilot Drill for Changeable-Size Masonry Core Drill Bit3084A5800000

    Rebar-Cutting Core Drill Bits for Concrete

    Core out large holes in concrete, even if it's reinforced with rebar mesh. No need to switch bits, these have a diamond-coated edge that keeps on cutting and resists wear to stay sharp.
    Threaded-Hub Shank for Rotary Only Drilling
    Image of Product. Front orientation. Drill Bits. Rebar-Cutting Core Drill Bits for Concrete, Threaded-Hub Shank for Rotary Only Drilling.
    Bits are designed for wet drilling on a drilling rig. To avoid damage to bits and tools, do not use for dry drilling or with portable drills or grinders.
    Drill Bit
    Size
    Decimal Size
    Equiv.
    Overall
    Lg.
    Max. Drilling
    Dp.
    Shank
    Size
    Thread
    Size
    Bit
    ID
    Each
    Diamond Coated
     
    Standard Point
    4 1/2"
    		4.5"
    		15 1/2"13"4 1/2"1 1/4"-7
    		4 1/4"2872A590000000
     
    back to top