Goliath 2 x 0.4mm MC Fluteless (Roll Form) HSS-Co5 Tap Bright
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Goliath is an Australian precision cutting tool brand supplying HSS taps, threading dies, tap and die sets, thread gauges, and key steel to engineering, manufacturing, maintenance, and toolmaking operations across Australia. This page covers the Goliath MC Fluteless HSS-Co5 Tap Bright, available in 10 diameter options: 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 5mm, 6mm, 8mm and 2 more.
Goliath metric coarse tap and die sets cover the full standard metric thread range for cutting M-series internal and external threads in engineering and fabrication.
Where this product is used
Goliath metric tap and die set products are used across engineering workshops, production machining, and industrial maintenance programs.
- Cutting metric coarse internal and external threads for standard M-series fastener manufacture and repair.
- Engineering workshop threading for metric hardware, structural fasteners, and general machinery.
- Maintenance and repair programs on equipment using metric standard fasteners.
Key specifications
| Specification | Detail |
|---|---|
| Material Grade | HSS-Co5 Cobalt |
Selecting the right option
Metric coarse sets are available in a range of size spans — select the set that covers your required size range. HSS grade suits hand and machine threading on mild steel, aluminium, brass, and plastics. For production tapping, consider Goliath cobalt spiral flute machine taps for individual sizes.
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Goliath MC Fluteless HSS-Co5 Tap Bright: 2mm / 0.4mm
SKU: A0193585 | Model: B30EG
This is the diameter 2mm, pitch 0.4mm option of the Goliath MC Fluteless HSS-Co5 Tap Bright. Key details for this option: thread form type Metric, length overall 41mm.
Goliath MC Fluteless (Roll Form) HSS-Co5 Tap Bright
HSS-Co (Cobalt) Bright Finish Metric Coarse Fluteless Machine Tap.
HSS Fluteless (Roll Form) Taps.
Fluteless taps are also referred to as "Roll Form" or "Thread Flow" taps.
Unlike standard taps, fluteless taps create internal threads by pressure deformation, rather than by material removal.
As a result, no chips are formed as no material is removed.
The thread is formed by the tap in the ductile material creating threads that have a smoother surface and greater tensile strength under dynamic stress than cut threads.
It is essential to use a high-quality lubricating fluid when using fluteless taps.
Materials with a minimum elongation of 5% and a tensile strength no greater than 1,000 N/mm2 are suitable for thread forming.
The metric Coarse angle of the thread is 60 degrees.
The crest is flat and the thread has clearance at the root allowing external thread and internal thread to engage well.
A larger root radius and lower thread height enable easy screw thread processing and increase thread screw strength.
The major diameter of the external thread and pitch is specified by a simple numerical value (most commonly measured in millimetres).
Manufactured from HSS this fluteless tap is designed for use in medium tensile materials and is for hand or general machine use.
IMPORTANT - Fluteless Taps use different tapping drill sizes than standard taps.
About HSS Fluteless Taps
In contrast to thread-cutting taps, no chips are created when producing threads with fluteless (roll form/thread flow) taps.
The thread is formed by the tap in the ductile material creating threads that have a smoother surface and greater tensile strength under dynamic stress than cut threads.
It is essential to use a high-quality lubricating fluid when using fluteless taps.
Materials with a minimum elongation of 5% and a tensile strength no greater than 1,000 N/mm2 are suitable for thread forming.
IMPORTANT: Fluteless Taps use different tapping drill sizes than standard taps.