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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—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.
    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
    		4F
    		0.257"Square000000000000
    5/16"-24
    		1 1/8"2 23/32"UNF
    		4I
    		0.272"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
    		4Q
    		0.332"Square000000000000
    7/16"-14
    		1 7/16"3 5/32"UNC
    		4U
    		0.368"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 mm
    		0.13"Square0000000000000
    M5 × 0.8 mm7/8"2 3/8"Metric
    		44.2 mm
    		0.165"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 mm
    		0.266"Square0000000000000
    M10 × 1.5 mm1 1/4"2 15/16"Metric
    		48.5 mm
    		0.335"Square0000000000000
    M12 × 1.75 mm1 21/32"3 3/8"Metric
    		410.25 mm
    		0.404"Square0000000000000
     

    Oversized Chip-Clearing Taps

    Image of ProductInUse. Front orientation. Taps. Oversized Chip-Clearing Taps, Spiral-Point Flute for Through Holes.

    Spiral-Point Flute for Through Holes

    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—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.
    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
     
    Uncoated
    4-40
    		9/16"1 7/8"UNC
    		43 Ga.
    		0.089"SquarePlug20000000000000
    6-32
    		11/16"2"UNC
    		36 Ga.
    		0.1065"SquarePlug2000000000000
    8-32
    		3/4"2 1/8"UNC
    		29 Ga.
    		0.136"SquarePlug2000000000000
    10-24
    		7/8"2 3/8"UNC
    		25 Ga.
    		0.1495"SquarePlug2000000000000
    10-32
    		7/8"2 3/8"UNF
    		21 Ga.
    		0.159"SquarePlug2000000000000
    1/4"-20
    		1"2 1/2"UNC
    		7 Ga.
    		0.201"SquarePlug2000000000000
    1/4"-28
    		1"2 1/2"UNF
    		3 Ga.
    		0.213"SquarePlug2000000000000
    5/16"-18
    		1 1/8"2 23/32"UNC
    		F
    		0.257"SquarePlug3000000000000
    5/16"-24
    		1 1/8"2 23/32"UNF
    		I
    		0.272"SquarePlug3000000000000
    3/8"-16
    		1 1/4"2 15/16"UNC
    		5/16"
    		0.3125"SquarePlug3000000000000
    3/8"-24
    		1 1/4"2 15/16"UNF
    		Q
    		0.332"SquarePlug3000000000000
    1/2"-13
    		1 21/32"3 3/8"UNC
    		27/64"
    		0.4219"SquarePlug3000000000000
    1/2"-20
    		1 21/32"3 3/8"UNF
    		29/64"
    		0.4531"SquarePlug3000000000000
    5/8"-11
    		1 13/16"3 13/16"UNC
    		17/32"
    		0.5313"SquarePlug3000000000000
    3/4"-10
    		2"4 1/4"UNC
    		21/32"
    		0.6563"SquarePlug3000000000000
    M3 × 0.5 mm11/16"1 15/16"Metric
    		2.5 mm0.0984"SquarePlug20000000000000
    M3.5 × 0.6 mm11/16"2"Metric
    		2.9 mm0.1142"SquarePlug20000000000000
    M4 × 0.7 mm3/4"2 1/8"Metric
    		3.3 mm
    		0.1299"SquarePlug20000000000000
    M5 × 0.8 mm7/8"2 3/8"Metric
    		4.2 mm
    		0.1653"SquarePlug20000000000000
    M6 × 1 mm1"2 1/2"Metric
    		5 mm0.1968"SquarePlug20000000000000
    M8 × 1.25 mm1 1/8"2 23/32"Metric
    		6.75 mm
    		0.2657"SquarePlug20000000000000
    M10 × 1.5 mm1 1/4"2 15/16"Metric
    		8.5 mm
    		0.3346"SquarePlug30000000000000
    M12 × 1.75 mm1 21/32"3 3/8"Metric
    		10.25 mm
    		0.4035"SquarePlug30000000000000
     
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