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    46 Products

    Oversized Taps

    Image of Product. Front orientation. Taps. Oversized Taps.
    Cut slightly oversized threads to create space for plating and compensate for heat treatments that shrink threads. These taps have a pitch diameter that’s 0.0055" larger than standard taps. Their straight flutes 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.
    Plug Chamfer—These taps thread 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.
    Drill Bit
    Plug Chamfer
    Thread Size
    Thread
    Lg.
    Overall
    Lg.
    Thread
    Type
    No. of
    Flutes
    Size
    Decimal Size
    Equiv.
    Shank
    Type
    Each
    High-Speed Steel
     
    Uncoated
    6-32
    11/16"2"UNC
    336 Ga.0.1065"Square000000000000
    8-32
    3/4"2 1/8"UNC
    329 Ga.0.136"Square00000000000
    10-24
    7/8"2 3/8"UNC
    325 Ga.0.1495"Square00000000000
    10-32
    7/8"2 3/8"UNF
    321 Ga.0.159"Square00000000000
    1/4"-20
    1"2 1/2"UNC
    47 Ga.0.201"Square000000000000
    1/4"-28
    1"2 1/2"UNF
    43 Ga.0.213"Square000000000000
    5/16"-18
    1 1/8"2 23/32"UNC
    4F0.257"Square000000000000
    5/16"-24
    1 1/8"2 23/32"UNF
    4I0.272"Square000000000000
    3/8"-16
    1 1/4"2 15/16"UNC
    45/16"0.3125"Square000000000000
    3/8"-24
    1 1/4"2 15/16"UNF
    4Q0.332"Square000000000000
    7/16"-14
    1 7/16"3 5/32"UNC
    4U0.368"Square000000000000
    7/16"-20
    1 7/16"3 5/32"UNF
    425/64"0.3906"Square000000000000
    1/2"-13
    1 21/32"3 3/8"UNC
    427/64"0.4219"Square000000000000
    1/2"-20
    1 21/32"3 3/8"UNF
    429/64"0.4531"Square000000000000
    5/8"-11
    1 13/16"3 13/16"UNC
    417/32"0.5313"Square000000000000
    M3 × 0.5 mm5/8"1 15/16"Metric
    32.5 mm0.098"Square0000000000000
    M3.5 × 0.6 mm11/16"2"Metric
    32.9 mm0.114"Square0000000000000
    M4 × 0.7 mm3/4"2 1/8"Metric
    43.3 mm0.13"Square0000000000000
    M5 × 0.8 mm7/8"2 3/8"Metric
    44.2 mm0.165"Square0000000000000
    M6 × 1 mm1"2 1/2"Metric
    45.0 mm0.197"Square0000000000000
    M8 × 1.25 mm1 1/8"2 23/32"Metric
    46.75 mm0.266"Square0000000000000
    M10 × 1.5 mm1 1/4"2 15/16"Metric
    48.5 mm0.335"Square0000000000000
    M12 × 1.75 mm1 21/32"3 3/8"Metric
    410.25 mm0.404"Square0000000000000
     

    Oversized Chip-Clearing Taps

    Remove chips as you cut slightly oversized threads that create space for plating or compensate for shrink from heat treating. These taps have a pitch diameter that’s 0.0055" larger than standard taps. The spiral-point flutes force chips through the hole so there’s no buildup to damage the threads or the tap.
    High-Speed Steel
    Image of ProductInUse. Front orientation. Taps. Oversized Chip-Clearing Taps, Spiral-Point Flute for Through Holes.

    Spiral-Point Flute for Through Holes

    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.
    Spiral-Point Flute for Through Holes—Push chips ahead of the tap and out of through holes. Also known as gun taps.
    Drill Bit
    Spiral-Point Flute
    for Through Holes
    Thread Size
    Thread
    Lg.
    Overall
    Lg.
    Thread
    Type
    Size
    Decimal Size
    Equiv.
    Shank
    Type
    No. of
    Flutes
    Each
    Plug Chamfer
     
    Uncoated
    4-40
    9/16"1 7/8"UNC
    43 Ga.0.089"Square20000000000000
    6-32
    11/16"2"UNC
    36 Ga.0.1065"Square2000000000000
    8-32
    3/4"2 1/8"UNC
    29 Ga.0.136"Square2000000000000
    10-24
    7/8"2 3/8"UNC
    25 Ga.0.1495"Square2000000000000
    10-32
    7/8"2 3/8"UNF
    21 Ga.0.159"Square2000000000000
    1/4"-20
    1"2 1/2"UNC
    7 Ga.0.201"Square2000000000000
    1/4"-28
    1"2 1/2"UNF
    3 Ga.0.213"Square2000000000000
    5/16"-18
    1 1/8"2 23/32"UNC
    F0.257"Square3000000000000
    5/16"-24
    1 1/8"2 23/32"UNF
    I0.272"Square3000000000000
    3/8"-16
    1 1/4"2 15/16"UNC
    5/16"0.3125"Square3000000000000
    3/8"-24
    1 1/4"2 15/16"UNF
    Q0.332"Square3000000000000
    1/2"-13
    1 21/32"3 3/8"UNC
    27/64"0.4219"Square3000000000000
    1/2"-20
    1 21/32"3 3/8"UNF
    29/64"0.4531"Square3000000000000
    5/8"-11
    1 13/16"3 13/16"UNC
    17/32"0.5313"Square3000000000000
    3/4"-10
    2"4 1/4"UNC
    21/32"0.6563"Square3000000000000
    M3 × 0.5 mm11/16"1 15/16"Metric
    2.5 mm0.0984"Square20000000000000
    M3.5 × 0.6 mm11/16"2"Metric
    2.9 mm0.1142"Square20000000000000
    M4 × 0.7 mm3/4"2 1/8"Metric
    3.3 mm0.1299"Square20000000000000
    M5 × 0.8 mm7/8"2 3/8"Metric
    4.2 mm0.1653"Square20000000000000
    M6 × 1 mm1"2 1/2"Metric
    5 mm0.1968"Square20000000000000
    M8 × 1.25 mm1 1/8"2 23/32"Metric
    6.75 mm0.2657"Square20000000000000
    M10 × 1.5 mm1 1/4"2 15/16"Metric
    8.5 mm0.3346"Square30000000000000
    M12 × 1.75 mm1 21/32"3 3/8"Metric
    10.25 mm0.4035"Square30000000000000
     
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