McMaster-Carr logo
    Filter by
    Number of Tapping Ends
    Thread Type
    Industrial Info Compare
    System of Measurement
    Chamfer Type
    Pipe Size
    Industrial Info Compare
    Threads per Inch
    Sold As
    For Hole Type
    Thread Direction
    Maximum Tapping Depth
    Attribute Image
    Flute Type
    Number of Flutes
    U.S.–Mexico–Canada Agreement (USMCA) Qualifying
    Industrial Info Compare
    DFARS Specialty Metals
    Export Control Classification Number (ECCN)
    Industrial Info Snippet
    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)
    17 Products

    2-in-1 Pipe and Conduit Taps

    One tap threads holes in pipe and conduit from start to finish. Begin with the taper-chamfer end, which gradually engages with the material and requires minimal force to turn the tool. Then flip to the bottoming-chamfer end to thread all the way through the hole.
    BSPP ThreadAbout BSPP Thread
    Image of Product. Front orientation. Taps. 2-in-1 Pipe and Conduit Taps.
    Image of Attribute. End View. Side1 orientation.

    End View

    High-Speed Steel—The most versatile taps resist heat and wear to stay sharp. They’re good for most metals and plastic.
    Drill Bit
    Taper Chamfer,
    Bottoming Chamfer
    Pipe
    Size
    Thread
    Lg.
    Overall
    Lg.
    For Wrench
    Size, mm
    No. of
    Flutes
    Threads
    per In.
    Size,
    mm
    Decimal Size
    Equiv.
    For Hex Drive
    Size, mm
    Each
    High-Speed Steel
     
    Uncoated
    1/4
    		55/64"2 3/4"841911.8
    		0.4645"43023N11000000
    3/8
    		55/64"2 3/4"1241915.3
    		0.6024"43023N1200000
    1/2
    		15/16"3 9/64"1541419
    		0.748"63023N13000000
    3/4
    		1 1/16"3 35/64"1941424.5
    		0.9646"83023N14000000
    1
    		1 9/64"3 15/16"2441130.5
    		1.2008"103023N15000000
     

    2-in-1 Taps

    Image of Product. Front orientation. Taps. 2-in-1 Taps.
    Image of Attribute. End View. Side1 orientation.

    End View

    Start threading a hole with one end of these taps and finish it with the other. The taper-chamfer end gradually engages with the material, reducing the force needed to turn the tool. Flip to the bottoming-chamfer end, which has a shorter tapered section, to thread all the way to bottom of holes. No special holder needed—turn these taps with an open-end wrench, or drive from either end using an L-key or ratchet wrench. Taps have straight flutes that are good for most jobs.
    High-Speed Steel—The most versatile taps resist heat and wear to stay sharp. They’re good for most metals and plastic.
    Drill Bit
    Taper Chamfer,
    Bottoming Chamfer
    Thread Size
    Thread
    Lg.
    Overall
    Lg.
    Thread
    Type
    For Wrench
    Size, mm
    No. of
    Flutes
    Size
    Decimal Size
    Equiv.
    For Hex Drive
    Size, mm
    Each
    High-Speed Steel
     
    Uncoated
    M12 × 1.25 mm55/64"2 3/4"Metric
    		8427/64"
    		0.4232"42910N17000000
    M12 × 1.5 mm55/64"2 3/4"Metric
    		8413/32"
    		0.4134"42910N1600000
    M12 × 1.75 mm55/64"2 3/4"Metric
    		8413/32"
    		0.4035"42910N1100000
    M14 × 1.5 mm55/64"2 3/4"Metric
    		10431/64"
    		0.4921"42910N1800000
    M14 × 2 mm55/64"2 3/4"Metric
    		10415/32"
    		0.4724"42910N1200000
    M16 × 1.5 mm55/64"2 3/4"Metric
    		12437/64"
    		0.5709"42910N1900000
    M16 × 2 mm55/64"2 3/4"Metric
    		10435/64"
    		0.5512"42910N1300000
    M20 × 1.5 mm15/16"3 9/64"Metric
    		15447/64"
    		0.7283"62910N2100000
    M20 × 2.5 mm15/16"3 9/64"Metric
    		13411/16"
    		0.689"62910N1400000
    M24 × 1.5 mm1 1/16"3 35/64"Metric
    		19457/64"
    		0.8957"82910N22000000
    M24 × 3 mm1 1/16"3 35/64"Metric
    		15453/64"
    		0.8268"82910N15000000
     

    Thread Repair Tools for Spark Plugs

    Image of Product. Front orientation. Thread Repair Tools. Thread Repair Tools for Spark Plugs.
    Attach these tools to a socket wrench to restore rusted and damaged spark plug threads in two common sizes.
    Thread
    Size (Type)
    Lg.
    Overall
    Lg.
    No. of
    Flutes
    Each
    Black-Oxide Steel
    M14 × 1.25 mm (Metric)
     M18 × 1.5 mm (Metric)    		5/8"
    5/8"    		2 9/16"35088N11000000
     
    back to top