Dormer’s threading taps are trusted across fabrication, machining, maintenance and engineering workshops for their accuracy, durability and consistent performance. Manufactured from premium High‑Speed Steel (HSS) and finished with bright or steam‑tempered coatings, Dormer taps deliver clean, accurate threads in steels, stainless steel and aluminium. M&G Industrial Supplies stocks Canberra’s largest range of Dormer hand and machine taps, including Metric Coarse, Metric Fine, UNC, UNF, BSW, BA, BSP, BSPT and NPT.
Dormer E500 – Metric Coarse (HSS, Bright Finish)
The E500 produces metric coarse threads and is manufactured from HSS for long tool life. The bright finish prevents chip welding, while the straight flute design makes it suitable for both blind and through holes. Ideal for hand tapping steels, stainless steel and aluminium. Manufactured to ISO standards.
M&G Industrial Supplies carries:
- E500: 1.6mm – 20.0mm
- Taper, Intermediate & Bottoming
Dormer E513 – Metric Fine (HSS, Bright Finish)
The E513 produces metric fine threads and features a bright finish for clean cutting. Straight flutes allow use in both blind and through holes. Suitable for steels, stainless steel and aluminium. Manufactured to ISO recommendations.
M&G Industrial Supplies carries:
- E513: 3.0mm – 20.0mm
- Taper, Intermediate & Bottoming
Dormer E515 – Unified Coarse (UNC)
The E515 produces UNC threads and is available in taper (No.1), plug (No.2) and bottoming (No.3) chamfers, plus sets. Made from HSS with a bright finish for clean, accurate threads. Straight flutes for blind and through holes. Conforms to ISO standards.
M&G Industrial Supplies carries:
- E515: 2g56” – 1”
- Taper, Intermediate & Bottoming
Dormer E524 – Unified Fine (UNF)
The E524 produces UNF threads and is manufactured from HSS with a bright finish for clean threading. Straight flutes allow use in blind and through holes. Suitable for steels, stainless steel and aluminium. ISO‑compliant.
M&G Industrial Supplies carries:
- E524: 4g48” – 1”
- Taper, Intermediate & Bottoming
Dormer E531 – British Standard Whitworth (BSW)
The E531 produces BSW threads and is available in taper, plug and bottoming chamfers. Bright finish prevents chip welding and improves accuracy. Straight flutes for blind and through holes. ISO‑compliant.
M&G Industrial Supplies carries:
- E531: 1/8” – ¾”
- Taper, Intermediate & Bottoming
Dormer E533 – BSW Machine Tap (Spiral Flute)
The E533 is a spiral‑flute machine tap for BSW threads, ideal for blind holes. Made from HSS with bright or steam‑tempered finish for clean cutting. Suitable for steels, stainless steel and aluminium.
M&G Industrial Supplies carries:
- E533: ¼”, 5/16”, 3/8”, ½”
Dormer E534 – BSW Machine Tap (Spiral Point)
The E534 is a spiral‑point machine tap for BSW threads, designed for through holes. Premium HSS with steam‑tempered finish for clean, accurate threads. Suitable for steels, stainless steel and aluminium.
M&G Industrial Supplies carries:
- E534: 3/16”, ¼”
Dormer E542 – BA (British Association)
The E542 produces BA threads and is manufactured from HSS with a bright finish for clean threading. Straight flutes for blind and through holes. Suitable for steels, stainless steel and aluminium. ISO‑compliant.
M&G Industrial Supplies carries:
- E542: BA0 – BA8
- Taper, Intermediate & Bottoming
Dormer E547 – BSPP (G‑Series) Pipe Threads
The E547 produces British Standard Pipe Parallel (BSPP) threads. Bright finish prevents chip welding; straight flutes suit blind and through holes. HSS construction for long tool life. ISO‑compliant.
M&G Industrial Supplies carries:
- E547: 1/8” – ¾”
- Taper, Intermediate & Bottoming
Dormer E550 – BSPT (Rc) Taper Pipe Threads
The E550 produces British Standard Taper Pipe (BSPT/Rc) threads. Premium HSS with bright finish for clean, accurate threading. Straight flutes for blind and through holes. Suitable for steels, stainless steel and aluminium.
M&G Industrial Supplies carries:
- E550: 1/8” – ½”
Dormer E710 – NPT (National Pipe Taper)
The E710 produces NPT threads and is manufactured from HSS for long tool life. Bright finish prevents chip welding; suitable for blind and through holes. Conforms to ANSI standards.
M&G Industrial Supplies carries:
- E710: 1/8” – ½”
Why Canberra Workshops Choose Dormer Taps
- Premium HSS for long tool life
- Bright or steam‑tempered finishes for clean cutting
- Straight or spiral flutes for blind & through holes
- Full range of thread forms for fabrication & maintenance
- ISO/ANSI‑compliant accuracy
- Reliable performance in steels, stainless steel & aluminium
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