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    276 Products

    Left-Hand Thread Taps

    Image of Product. Front orientation. Taps. Left-Hand Thread Taps.
    Create left-hand threads that prevent counter-clockwise rotating parts, such as flywheels and propellers, from loosening and spinning off. These 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.
    Uncoated—The economical choice, these won't last as long as coated taps.
    Taper Chamfer—Good for both starting holes and threading through holes. These taps have the longest taper to gradually engage with the material, reducing the force needed to turn them. They can't reach the bottom of blind holes, however, so you will likely need to finish with a bottoming-chamfer tap.
    Plug Chamfer—Our go-to chamfer type, these thread both through holes and blind holes. The tapered section is shorter than a taper chamfer and longer than bottoming chamfer. As a result, they're easier to turn than bottoming taps but require more force than taper taps.
    Bottoming Chamfer—Cut all the way to the bottom of blind holes with taps that have the shortest taper. Since these require the most force to turn, they’re often used to finish holes started by taper- or plug-chamfer taps.
    Taps Sold as Sets—Include one tap of each chamfer type.
    Taps
    Taps Sold as Sets
    Drill Bit
    Taper Chamfer
    Plug Chamfer
    Bottoming
    Chamfer
    Thread Size
    Thread
    Lg.
    Overall
    Lg.
    Thread
    Type
    No. of
    Flutes
    Size
    Decimal Size
    Equiv.
    Shank
    Type
    Each
    Each
    Each
    No. of
    Taps
    Each
    High-Speed Steel
     
    Uncoated
    6-32
    11/16"2"UNC
    336 Ga.
    0.1065"Square———02584A120000002584A67000000———0
    8-32
    3/4"2 1/8"UNC
    429 Ga.
    0.136"Square2584A460000002584A13000002584A680000032584A314000000
    10-24
    7/8"2 3/8"UNC
    425 Ga.
    0.1495"Square2584A47000002584A14000002584A6900000———0
    10-32
    7/8"2 3/8"UNF
    421 Ga.
    0.159"Square2584A48000002584A32000002584A710000032584A31800000
    1/4"-20
    1"2 1/2"UNC
    47 Ga.
    0.201"Square2584A4900002584A1500002584A72000032584A32100000
    1/4"-28
    1"2 1/2"UNF
    43 Ga.
    0.213"Square2584A51000002584A33000002584A730000032584A32300000
    1/4"-40
    1"2 1/2"UNS
    42 Ga.
    0.221"Square2584A901000002584A902000002584A9030000032584A927000000
    5/16"-18
    1 1/8"2 23/32"UNC
    4F
    0.257"Square2584A52000002584A16000002584A740000032584A32500000
    5/16"-20
    1 1/8"2 23/32"UNS
    4G
    0.261"Square2584A904000002584A90500000———032584A928000000
    5/16"-24
    1 1/8"2 23/32"UNF
    4I
    0.272"Square2584A53000002584A34000002584A750000032584A32700000
    3/8"-16
    1 1/4"2 15/16"UNC
    45/16"
    0.3125"Square2584A54000002584A17000002584A760000032584A32900000
    3/8"-24
    1 1/4"2 15/16"UNF
    4Q
    0.332"Square2584A55000002584A35000002584A770000032584A33200000
    7/16"-14
    1 7/16"3 5/32"UNC
    4U
    0.368"Square2584A56000002584A18000002584A7800000———0
    7/16"-20
    1 7/16"3 5/32"UNF
    425/64"
    0.3906"Square2584A57000002584A36000002584A7900000———0
    1/2"-13
    1 21/32"3 3/8"UNC
    427/64"
    0.4219"Square2584A58000002584A19000002584A810000032584A33800000
    1/2"-20
    1 21/32"3 3/8"UNF
    429/64"
    0.4531"Square2584A59000002584A37000002584A820000032584A34100000
    9/16"-18
    1 21/32"3 19/32"UNF
    433/64"
    0.5156"Square2584A592000002584A37200000———0———0
    9/16"-20
    1 21/32"3 19/32"UNS
    433/64"
    0.5156"Square2584A907000002584A908000002584A9090000032584A929000000
    5/8"-11
    1 13/16"3 13/16"UNC
    417/32"
    0.5313"Square2584A61000002584A38000002584A8300000———0
    5/8"-18
    1 13/16"3 13/16"UNF
    437/64"
    0.5781"Square2584A62000002584A39000002584A8400000———0
    11/16"-16
    1 13/16"4 1/32"UNF
    45/8"
    0.625"Square2584A911000002584A91200000———032584A931000000
    11/16"-18
    1 13/16"4 1/32"UNS
    616 mm0.6299"Square2584A9140000002584A9150000002584A91600000032584A932000000
    3/4"-10
    2"4 1/4"UNC
    421/32"
    0.6563"Square2584A63000002584A41000002584A8500000———0
    3/4"-16
    2"4 1/4"UNF
    411/16"
    0.6875"Square2584A64000002584A42000002584A8600000———0
    7/8"-18
    2 7/32"4 11/16"UNS
    653/64"
    0.8281"Square2584A9170000002584A9180000002584A91900000032584A933000000
    1"-8
    2 1/2"5 1/8"UNC
    47/8"
    0.875"Square2584A65000002584A43000002584A870000032584A352000000
    1"-12
    2 1/2"5 1/8"UNF
    459/64"
    0.9219"Square2584A66000002584A44000002584A880000032584A354000000
    1"-14
    2 1/2"5 1/8"UNS
    423.6 mm
    0.9291"Square2584A01000002584A21000002584A890000032584A556000000
    1"-16
    2 1/2"5 1/8"UNS
    615/16"
    0.9375"Square2584A9210000002584A9220000002584A92300000032584A934000000
    1"-20
    2 1/2"5 1/8"UNEF
    661/64"
    0.9531"Square———02584A925000000———032584A935000000
    1 1/8"-7
    2 9/16"5 7/16"UNC
    463/64"
    0.9844"Square2584A020000002584A220000002584A9100000032584A558000000
    1 1/8"-12
    2 9/16"5 7/16"UNF
    41 1/32"
    1.0313"Square2584A030000002584A230000002584A9200000032584A561000000
    1 1/4"-7
    2 9/16"5 3/4"UNC
    41 3/32"
    1.0938"Square2584A040000002584A240000002584A9300000032584A563000000
    1 1/4"-12
    2 9/16"5 3/4"UNF
    41 11/64"
    1.1719"Square2584A050000002584A250000002584A9400000032584A565000000
    1 1/2"-6
    3"6 3/8"UNC
    41 11/32"
    1.3438"Square2584A080000002584A28000000———032584A569000000
    1 1/2"-12
    3"6 3/8"UNF
    61 27/64"
    1.4219"Square2584A090000002584A290000002584A9800000032584A572000000
    M4 × 0.7 mm3/4"2 1/8"Metric
    43.3 mm
    0.1299"Square26565A12000026565A32000026565A520000326565A7200000
    M4.5 × 0.75 mm7/8"2 3/8"Metric
    43.7 mm
    0.1457"Square———026565A91400000———0———0
    M5 × 0.8 mm15/16"2 3/8"Metric
    44.2 mm
    0.1653"Square26565A14000026565A34000026565A540000326565A7400000
    M6 × 1 mm1"2 1/2"Metric
    45 mm0.1968"Square26565A15000026565A35000026565A550000326565A7500000
    M7 × 1 mm1 1/8"2 23/32"Metric
    46 mm0.2362"Square26565A160000026565A360000026565A5600000326565A7600000
    M8 × 1 mm1 1/8"2 23/32"Metric
    46.9 mm
    0.2716"Square26565A1610000026565A3610000026565A56100000326565A76100000
    M8 × 1.25 mm1 1/8"2 23/32"Metric
    46.7 mm
    0.2637"Square26565A170000026565A370000026565A5700000326565A7700000
    M10 × 1 mm1 1/4"2 15/16"Metric
    48.9 mm
    0.3503"Square26565A1720000026565A3720000026565A57200000326565A772000000
    M10 × 1.25 mm1 1/4"2 15/16"Metric
    48.7 mm
    0.3425"Square26565A1730000026565A3730000026565A57300000326565A77300000
    M10 × 1.5 mm1 1/4"2 15/16"Metric
    48.5 mm
    0.3346"Square26565A180000026565A380000026565A5800000326565A7800000
    M12 × 1.25 mm1 21/32"3 3/8"Metric
    410.8 mm
    0.4251"Square26565A1820000026565A3820000026565A58200000326565A78200000
    M12 × 1.5 mm1 21/32"3 3/8"Metric
    410.5 mm
    0.4134"Square26565A1830000026565A3830000026565A58300000326565A783000000
    M12 × 1.75 mm1 21/32"3 3/8"Metric
    410.2 mm
    0.4015"Square26565A190000026565A390000026565A5900000326565A7900000
    M14 × 1 mm1 21/32"3 19/32"Metric
    413 mm0.5118"Square26565A1910000026565A3910000026565A59100000326565A791000000
    M14 × 1.5 mm1 21/32"3 19/32"Metric
    412.5 mm
    0.4921"Square26565A1920000026565A3920000026565A59200000326565A79200000
    M14 × 2 mm1 21/32"3 19/32"Metric
    412 mm0.4724"Square26565A210000026565A410000026565A6100000326565A81000000
    M16 × 1 mm1 13/16"3 13/16"Metric
    415 mm0.5905"Square26565A2110000026565A4110000026565A61100000326565A811000000
    M16 × 1.5 mm1 13/16"3 13/16"Metric
    414.5 mm
    0.5709"Square26565A2120000026565A4120000026565A61200000326565A81200000
    M16 × 2 mm1 13/16"3 13/16"Metric
    414 mm0.5512"Square26565A220000026565A420000026565A6200000326565A82000000
    M18 × 1.5 mm1 13/16"4 1/32"Metric
    416.5 mm
    0.6496"Square26565A2210000026565A4210000026565A62100000326565A821000000
    M18 × 2.5 mm1 13/16"4 1/32"Metric
    415.5 mm
    0.6102"Square———026565A430000026565A6300000326565A83000000
    M20 × 1.5 mm2"4 15/32"Metric
    447/64"
    0.7344"Square26565A2310000026565A4310000026565A63100000326565A831000000
    M20 × 2 mm2"4 15/32"Metric
    418 mm0.7087"Square26565A23200000026565A43200000026565A632000000326565A832000000
    M20 × 2.5 mm2"4 15/32"Metric
    417.5 mm
    0.689"Square26565A240000026565A440000026565A6400000326565A84000000
    M22 × 1.5 mm2 7/32"4 11/16"Metric
    420 mm0.7874"Square26565A9190000026565A9210000026565A92200000———0
    M22 × 2.5 mm2 7/32"4 11/16"Metric
    425/32"
    0.7813"Square26565A9160000026565A91700000———0———0
    M24 × 2 mm2 7/32"4 29/32"Metric
    422 mm0.8661"Square———026565A92400000026565A925000000———0
    M24 × 3 mm2 7/32"4 15/16"Metric
    421 mm0.8268"Square26565A250000026565A450000026565A6500000326565A85000000
     

    Left-Hand Thread Tap Sets

    Three chamfer types in one set create a snug fit with left-hand fasteners that secure counter-clockwise rotating parts. Left-hand threads keep components such as flywheels and propellers from loosening and spinning off. These taps have straight flutes that are good for most jobs.
    High-Speed Steel—Single Thread Size Sets
    Image of Product. Front orientation. Taps. Left-Hand Thread Tap Sets.
    The most versatile taps resist heat and wear to stay sharp. They’re good for most metals and plastic. These sets include one of each chamfer type: Taper for starting holes and threading through holes; plug for through holes and blind holes; and bottoming for cutting the closest to the bottom of any hole.
    Uncoated—The economical choice, these won't last as long as coated taps.
    Taper Chamfer, Plug
    Chamfer, Bottoming Chamfer
    No. of
    Pieces
    Tap Sizes
    Included
    Thread
    Type
    No. of
    Flutes
    Shank
    Type
    Each
    Uncoated
    38-32UNC
    4Square2584A314000000
    310-32UNF
    4Square2584A31800000
    31/4"-20UNC
    4Square2584A32100000
    31/4"-28UNF
    4Square2584A32300000
    31/4"-40UNS
    4Square2584A927000000
    35/16"-18UNC
    4Square2584A32500000
    35/16"-20UNS
    4Square2584A928000000
    35/16"-24UNF
    4Square2584A32700000
    33/8"-16UNC
    4Square2584A32900000
    33/8"-24UNF
    4Square2584A33200000
    31/2"-13UNC
    4Square2584A33800000
    31/2"-20UNF
    4Square2584A34100000
    39/16"-20UNS
    4Square2584A929000000
    311/16"-16UNF
    4Square2584A931000000
    311/16"-18UNS
    6Square2584A932000000
    37/8"-18UNS
    6Square2584A933000000
    31"-8UNC
    4Square2584A352000000
    31"-12UNF
    4Square2584A354000000
    31"-14UNS
    4Square2584A556000000
    31"-16UNS
    6Square2584A934000000
    31"-20UNS
    6Square2584A935000000
    31 1/8"-7UNC
    4Square2584A558000000
    31 1/8"-12UNF
    4Square2584A561000000
    31 1/4"-7UNC
    4Square2584A563000000
    31 1/4"-12UNF
    4Square2584A565000000
    31 1/2"-6UNC
    4Square2584A569000000
    31 1/2"-12UNF
    6Square2584A572000000
    3M4Metric
    4Square26565A7200000
    3M5Metric
    4Round26565A7400000
    3M6Metric
    4Square26565A7500000
    3M7Metric
    4Square26565A7600000
    3M8Metric
    4Square26565A76100000
    3M8Metric
    4Square26565A7700000
    3M10Metric
    4Square26565A772000000
    3M10Metric
    4Square26565A77300000
    3M10Metric
    4Square26565A7800000
    3M12Metric
    4Square26565A78200000
    3M12Metric
    4Square26565A783000000
    3M12Metric
    4Square26565A7900000
    3M14Metric
    4Square26565A791000000
    3M14Metric
    4Square26565A79200000
    3M14Metric
    4Square26565A81000000
    3M16Metric
    4Square26565A811000000
    3M16Metric
    4Square26565A81200000
    3M16Metric
    4Square26565A82000000
    3M18Metric
    4Square26565A821000000
    3M18Metric
    4Square26565A83000000
    3M20Metric
    4Square26565A831000000
    3M20Metric
    4Square26565A832000000
    3M20Metric
    4Square26565A84000000
    3M24Metric
    4Square26565A85000000
     

    Left-Hand Thread Chip-Clearing Taps

    Chips won't slow you down when creating threads to join counter-clockwise rotating parts. Left-hand threads keep components such as flywheels and propellers from loosening and spinning off. These taps force chips through the hole so there’s no buildup to damage the threads or the tap. Since you don’t need to reverse taps to extract chips, they also form threads faster than standard left-hand taps.
    High-Speed Steel—The most versatile taps resist heat and wear to stay sharp. They’re good for most metals and plastic.
    Uncoated—The economical choice, these won't last as long as coated taps.
    Titanium Nitride (TiN) Coated—Run at higher speeds and last twice as long as uncoated taps.
    Titanium Carbon Nitride (TiCN) Coated—Resist heat, chipping, and wear for three times the life of uncoated taps.
    Spiral-Point Flute for Through Holes—Push chips ahead of the tap and out of through holes. Also known as gun taps.
    Plug Chamfer—Our go-to chamfer type. With a longer taper than a bottoming chamfer, they are easier to turn but won't thread as close the bottom of a hole.
    Drill Bit
    Spiral-Point Flute
    for Through Holes
    Thread
    Size
    Thread
    Lg.
    Overall
    Lg.
    Thread
    Type
    Size
    Decimal Size
    Equiv.
    Shank
    Type
    Chamfer
    Type
    No. of
    Flutes
    Each
    High-Speed Steel
     
    Image of ProductInUse. Front orientation. Taps. Left-Hand Thread Chip-Clearing Taps, Spiral-Point Flute for Through Holes.

    Spiral-Point Flute for Through Holes

    Uncoated
    5-40
    5/8"1 15/16"UNC
    38 Ga.
    0.1015"SquarePlug225315A49000000
    6-32
    11/16"2"UNC
    36 Ga.
    0.1065"SquarePlug225315A5100000
    8-32
    3/4"2 1/8"UNC
    29 Ga.
    0.136"SquarePlug225315A5200000
    10-24
    7/8"2 3/8"UNC
    25 Ga.
    0.1495"SquarePlug225315A5400000
    10-32
    7/8"2 3/8"UNF
    21 Ga.
    0.159"SquarePlug225315A5500000
    1/4"-20
    1"2 1/2"UNC
    7 Ga.
    0.201"SquarePlug225315A5600000
    1/4"-28
    1"2 1/2"UNF
    3 Ga.
    0.213"SquarePlug225315A5700000
    5/16"-18
    1 1/8"2 23/32"UNC
    F
    0.257"SquarePlug225315A5800000
    5/16"-24
    1 1/8"2 23/32"UNF
    I
    0.272"SquarePlug225315A5900000
    3/8"-16
    1 1/4"2 15/16"UNC
    5/16"
    0.3125"SquarePlug325315A6100000
    3/8"-24
    1 1/4"2 15/16"UNF
    Q
    0.332"SquarePlug325315A6200000
    7/16"-14
    1 7/16"3 5/32"UNC
    U
    0.368"SquarePlug325315A6300000
    1/2"-13
    1 21/32"3 3/8"UNC
    27/64"
    0.4219"SquarePlug325315A6400000
    1/2"-20
    1 21/32"3 3/8"UNF
    29/64"
    0.4531"SquarePlug325315A6500000
    5/8"-11
    1 13/16"3 13/16"UNC
    17/32"
    0.5313"SquarePlug325315A6600000
     
    Image of ProductInUse. Front orientation. Taps. Left-Hand Thread Chip-Clearing Taps, Spiral-Point Flute for Through Holes.

    Spiral-Point Flute for Through Holes

    Titanium Nitride (TiN) Coated
    5-40
    5/8"1 15/16"UNC
    38 Ga.
    0.1015"SquarePlug225315A7100000
    6-32
    11/16"2"UNC
    36 Ga.
    0.1065"SquarePlug225315A7200000
    8-32
    3/4"2 1/8"UNC
    29 Ga.
    0.136"SquarePlug225315A7300000
    10-24
    7/8"2 3/8"UNC
    25 Ga.
    0.1495"SquarePlug225315A7400000
    10-32
    7/8"2 3/8"UNF
    21 Ga.
    0.159"SquarePlug225315A7500000
    1/4"-20
    1"2 1/2"UNC
    7 Ga.
    0.201"SquarePlug225315A7600000
    1/4"-28
    1"2 1/2"UNF
    3 Ga.
    0.213"SquarePlug225315A7700000
    5/16"-18
    1 1/8"2 23/32"UNC
    F
    0.257"SquarePlug225315A7800000
    5/16"-24
    1 1/8"2 23/32"UNF
    I
    0.272"SquarePlug225315A7900000
    3/8"-16
    1 1/4"2 15/16"UNC
    5/16"
    0.3125"SquarePlug325315A8100000
    3/8"-24
    1 1/4"2 15/16"UNF
    Q
    0.332"SquarePlug325315A8200000
    7/16"-14
    1 7/16"3 5/32"UNC
    U
    0.368"SquarePlug325315A8300000
    1/2"-13
    1 21/32"3 3/8"UNC
    27/64"
    0.4219"SquarePlug325315A8400000
    1/2"-20
    1 21/32"3 3/8"UNF
    29/64"
    0.4531"SquarePlug325315A8500000
    5/8"-11
    1 13/16"3 13/16"UNC
    17/32"
    0.5313"SquarePlug325315A8600000
     
    Image of ProductInUse. Front orientation. Taps. Left-Hand Thread Chip-Clearing Taps, Spiral-Point Flute for Through Holes.

    Spiral-Point Flute for Through Holes

    Titanium Carbon Nitride (TiCN) Coated
    5-40
    5/8"1 15/16"UNC
    38 Ga.
    0.1015"SquarePlug225315A8700000
    6-32
    11/16"2"UNC
    36 Ga.
    0.1065"SquarePlug225315A8800000
    8-32
    3/4"2 1/8"UNC
    29 Ga.
    0.136"SquarePlug225315A8900000
    10-24
    7/8"2 3/8"UNC
    25 Ga.
    0.1495"SquarePlug225315A9100000
    10-32
    7/8"2 3/8"UNF
    21 Ga.
    0.159"SquarePlug225315A9200000
    1/4"-20
    1"2 1/2"UNC
    7 Ga.
    0.201"SquarePlug225315A9300000
    1/4"-28
    1"2 1/2"UNF
    3 Ga.
    0.213"SquarePlug225315A9400000
    5/16"-18
    1 1/8"2 23/32"UNC
    F
    0.257"SquarePlug225315A9500000
    5/16"-24
    1 1/8"2 23/32"UNF
    I
    0.272"SquarePlug225315A9600000
    3/8"-16
    1 1/4"2 15/16"UNC
    5/16"
    0.3125"SquarePlug325315A9700000
    3/8"-24
    1 1/4"2 15/16"UNF
    Q
    0.332"SquarePlug325315A9800000
    7/16"-14
    1 7/16"3 5/32"UNC
    U
    0.368"SquarePlug325315A9900000
    1/2"-13
    1 21/32"3 3/8"UNC
    27/64"
    0.4219"SquarePlug325315A10100000
    1/2"-20
    1 21/32"3 3/8"UNF
    29/64"
    0.4531"SquarePlug325315A10200000
    5/8"-11
    1 13/16"3 13/16"UNC
    17/32"
    0.5313"SquarePlug325315A10300000
     
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