RS PRO HSS M4 Straight Flute Threading Tap, 53 mm Length

  • RS Stock No. 668-1071
  • Manufacturer RS PRO
Technical data sheets
Legislation and Compliance
RoHS Status: Not Applicable
COO (Country of Origin): CN
Product Details

HSS Metric Taps Left Hand Thread -Straight Flute

Introducing 3 piece RS PRO HSS left-hand straight flute taps, a selection of high quality and professional threading taps ideal for cutting thread (tapping) by hand or machine, into drilled holes in materials such as metal and wood.

Our range of 3 piece thread taps from RS PRO are manufactured using high speed steel (HSS), providing excellent durability and corrosion resistance properties. They include a taper, second and plug tap and are available in a variety of metric sizes to suit a wide range of applications. These durable tap sets are compatible with tools such as a tap wrench or power tool for enhanced torque and control. These 3 piece sets are also supplied with a handy plastic case for safe storage when not in use.

Features and benefits

High quality High Speed Steel taps
Left Hand thread
Metric coarse series thread
Straight flute
Set of 3 (taper second and plug tap)
Supplied in a polypropylene storage case

Typical Applications

Threading taps are a type of tool use for cutting thread (tapping) into a pre-drilled hole, to create a clean fitting for bolts and other materials to attach to steel rods and more. Threading taps work by cutting away material to produce a thread when turned. Threading taps can be used with a tap wrench or power tool and are available in various sizes to accommodate a range of applications. They are commonly used in areas such as:

• Construction
• Plumbing
• Workshops
• Renovations


What is HSS?

An acronym for High-speed steel, HSS is generally the go-to type of steel needed for drill bits due to their excellent heat resistance at high speeds. As a standard drill can spin upwards of around 500 - 700rpm, the friction can cause a substantial build-up of heat. Something which would not be wanted when working with wood and plastic.

What are the different types of threading taps?

The four most popular ones are:

Straight Flute Taps: most commonly used type of tap and suitable for blind or though hole thread production in most materials, mainly steel and cast iron. These collect chips in the straight flutes of the tool
Spiral Point Taps: suitable for threading through holes. They push chips through holes ahead of the tool
Spiral Flute Taps: intended primarily for threading blind holes. They pull chips back from the tip of the tool and up and out of the hole.
Forming Taps: produce a thread by pressing the material rather than cutting and no chips are created.

Should I lubricate the taps?

It is recommended that lubrication is regularly applied to taps and dies when in use, to allow for friction free threading with precision. This will ensure that a clean thread is achieved with minimal damage.

What is the difference between a tap and die?

A tap set is used to create or repair threads in holes which is ideal for things such as nuts and fittings, this process is called tapping. Dies are used to cut threads on materials such as steel rods to allow a fitting to be screwed on and attached, this is called threading.


Set of 3 (Taper; Second; Plug Tap)

Attribute Value
Thread Size M4
Set Type Threading Tap
Type Straight Flute
Pitch 0.7mm
Thread Standard Metric
Thread Direction Left Hand
Number of Pieces 1
Overall Length 53 mm
Material HSS
Shank Diameter 4 mm
159 In Global stock for delivery within 4 - 6 working days
Price 1 Set
MYR 114.68
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