Dormer HSS M8 Straight Flute, Plug Thread Tap, 72 mm Length

  • RS Stock No. 240-3316
  • Mfr. Part No. E500 8.0 X 1.25 3FL BOTT
  • Manufacturer Dormer
Technical data sheets
Legislation and Compliance
RoHS Status: Not Applicable
Product Details

HSS Straight Flute Metric Coarse Hand Tap (E500)

HSS Straight Flute hand tap for producing metric coarse threads in most materials.

Features and Benefits:

Suitable for tapping repeatable tolerance threads in through or blind holes by hand or machine
7° cutting rake angle
Bright finish

Typical Applications

Taps and dies are used to create screw threads (commonly known as threading). Taps make nuts and a die makes a bolt. Forming threads using a tap is known as tapping, but using a die calls the process threading. Threading taps are used in:


What is HSS?

An acronym for High-speed steel, HSS is generally the go-to type of steel needed for tap and 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.

These Dormer taps are Straight Flute Taps. Straight flute taps and be used by hand and they can also be used in a machine if needed.


Manufactured to ISO529





Engineering Taps - Straight Flute (Dormer)

Precision HSS taps to ISO529 designed to produce repeatable tolerance threads in most engineering materials. Suitable for medium/high rate production. All taps are to tolerance class 2, giving 6H fit (metric taps) or 2B fit (UNF & UNC taps)

Attribute Value
Thread Size M8
Type Plug, Straight Flute
Pitch 1.25mm
Thread Standard Metric
Thread Direction Right Hand
Overall Length 72 mm
Material HSS
Shank Diameter 8 mm
Shank Type Plain
Class of Fit 6H
67 In Global stock for delivery within 4 - 6 working days
Price Each
MYR 64.82
Per unit
1 +
Related Products
Precision HSS taps with straight flutes.Suitable for machine ...
Precision HSS taps with straight flutes.Suitable for machine or hand tappingBlue steam tempered finish reduces friction and produces a fine finish on the threads.
Combined HSS TIN single-cut tap with spiral flute ...
Combined HSS TIN single-cut tap with spiral flute and 1/4" hex driveDeburring zone with edge breakerFor core drilling, thread cutting and deburring in a single processCrosswise grinding, drills do not drill off-centre — even without centre-punchingSuitable for construction steel, CrNi ...
Standard: DIN 352. Set of metric pitch HSS ...
Standard: DIN 352. Set of metric pitch HSS hand tap bits offered in a set of 3 parts (taper, intermediate and finishing tap bits).Each set consists of a taper tap bit with an I/P of 5 threads; the intermediate has ...
Standard: DIN 2181. Range of manual fine metric ...
Standard: DIN 2181. Range of manual fine metric thread HSS taps (ISO/DIN 13) in a set of two units (roughing and finishing).The roughing tap has a five-thread entry and the finisher has two.The tap bit tolerance class is 6H, the ...