Threading Tap Sets

What are tap sets?

Used to cut a thread into a piece of material, taps are used similarly to a drill bit but rather than removing material to create a hole, a tap removes material for an existing holes walls to create a screw or bolt thread. Taps can be used with a tap wrench or with a power tool such as a drill. Forming taps by hand with a tap wrench or T wrench gives you the ability to slowly form the thread ensuring it cuts evenly and smoothly for the best finish. Working with power tools to cut threads can be faster for mass produced work but care must be taken to ensure the thread is cut correctly.

Different types of taps

Taper taps are used to start new threads in materials that have not previously been cut. This gradual tapered cut allows for a smooth start to a new thread. These are commonly used in tougher materials like alloy steel to create less strain on the tap as well as on smaller diameter holes with thinner taps that are more prone to breaking whilst cutting.

Second taps, also known as plug or intermediate taps are used similarly to the taper tap, working to create a fresh new thread in material often not having previously been cut. Second taps have a shorter taper but more threads along the cutting length to create more thread, faster. Second taps are one of the most commonly used taps as they can cut fresh threads in material whilst also re-cutting threads in slightly worn or older crossed threads.

Bottom taps, unlike taper and second taps, are a straight, continuous cutting edge with no taper, meaning threads are cut as soon as the tap enters the hole. The full cutting body allows for threads to be cut right down to the bottom of a blind hole. Blind hole tapping is when a thread is cut into a hole that does not pass fully through a piece of material. The bottom tap is typically only used when an existing thread has been cut either with a taper or second tap or when re-cutting an old thread that may have worn or been cross threaded.


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Description Price Set Type Maximum Tap Size Minimum Tap Size Number of Pieces Material Set Contents
RS Stock No. 241-4293
Mfr. Part No.E515 1/4 X 20 SET
BrandDormer
MYR149.52
1 Set
Set(s)
Straight Flute Tap 1/4 in UNC 1/4 in UNC 3 HSS Taper Tap; Second Tap and Plug Tap
RS Stock No. 241-4114
Mfr. Part No.E500 10.0 X 1.50 3FL SET3
BrandDormer
MYR226.05
1 Set
Set(s)
Straight Flute Tap M10 M10 3 HSS Taper Tap; Plug Tap and Bottom Tap
RS Stock No. 241-4057
Mfr. Part No.E500 3.5 X 0.60 3FL SET3
BrandDormer
MYR188.42
1 Set
Set(s)
Straight Flute Tap M3.5 M3.5 3 HSS Taper Tap; Plug Tap and Bottom Tap
RS Stock No. 241-4120
Mfr. Part No.E500 12.0 X 1.75 3FL SET3
BrandDormer
MYR326.74
1 Set
Set(s)
Straight Flute Tap M12 M12 3 HSS Taper Tap; Plug Tap and Bottom Tap
RS Stock No. 174-7892
Mfr. Part No.50121510
BrandGreenlee
MYR454.31
1 Set
Set(s)
Drill/Tap Kit M10 M3 6 High Speed Steel DTAPM10C M10 x 1.5 Drill/Tap Bit, DTAPM3C M3 x 0.5 Drill/Tap Bit, DTAPM4C M4 x 0.7 Drill/Tap Bit, DTAPM5C M5 x 0.8 Drill/Tap Bit, DTAPM6C M6 x 1 Drill/Tap Bit, DTAPM8C M8 x 1.25 Drill/Tap Bit
RS Stock No. 241-5117
Mfr. Part No.E524 1/4 X 28 SET
BrandDormer
MYR227.05
1 Set
Set(s)
Straight Flute Tap 1/4 in UNF 1/4 in UNF 3 HSS Taper Tap; Second Tap and Plug Tap
RS Stock No. 241-4063
Mfr. Part No.E500 4.0 X 0.70 3FL SET3
BrandDormer
MYR143.22
1 Set
Set(s)
Straight Flute Tap M4 M4 3 HSS Taper Tap; Plug Tap and Bottom Tap
RS Stock No. 508-8869
Mfr. Part No.01533
BrandEXACT
MYR80.33
Each
units
Hand Tap 1/4 in UNF 1/4 in UNF 2 HSS Taper Tap and Second Tap
RS Stock No. 241-5094
Mfr. Part No.E524 NO.10 X 32 SET
BrandDormer
MYR202.18
1 Set
Set(s)
Straight Flute Tap #10 UNF #10 UNF 3 HSS Taper Tap; Second Tap and Plug Tap
RS Stock No. 241-5123
Mfr. Part No.E524 5/16 X 24 SET
BrandDormer
MYR219.73
1 Set
Set(s)
Straight Flute Tap 5/16 in UNF 5/16 in UNF 3 HSS Taper Tap; Second Tap and Plug Tap
RS Stock No. 508-8847
Mfr. Part No.01536
BrandEXACT
MYR88.30
Each
units
Hand Tap 5/16 in UNF 5/16 in UNF 2 HSS Taper Tap and Second Tap
RS Stock No. 241-5145
Mfr. Part No.E524 1/2 X 20 SET
BrandDormer
MYR350.93
1 Set
Set(s)
Straight Flute Tap 1/2 in UNF 1/2 in UNF 3 HSS Taper Tap; Second Tap and Plug Tap
RS Stock No. 241-4091
Mfr. Part No.E500 7.0 X 1.00 3FL SET3
BrandDormer
MYR245.78
1 Set
Set(s)
Straight Flute Tap M7 M7 3 HSS Taper Tap; Plug Tap and Bottom Tap
RS Stock No. 508-9496
Mfr. Part No.10016
BrandEVENTUS
MYR33.92
Each
units
Hand Tap M6 M6 3 HSS Taper Tap; Second Tap and Plug Tap
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