HSS-Co Spiral Tap M5 × 0.8

HSS-Co Spiral Tap M5 × 0.8 is a professional metric spiral flute tap designed for precise cutting of internal M5 × 0.8 threads. Manufactured from high-quality HSS-Co (High-Speed Steel with Cobalt) and coated with TiAlN, it offers excellent wear resistance, high heat resistance, and a long service life. The spiral flute design efficiently lifts chips from blind holes, ensuring smooth and accurate threading.

Technical Information

• Product code: SRI0005
• Thread size: M5 × 0.8
• Thread type: Metric, right-hand
• Material: HSS-Co (High-Speed Steel with Cobalt)
• Coating: TiAlN (Titanium Aluminium Nitride)
• Design: Spiral Flute
• Application: Internal threading in blind holes
• Recommended drill size: Ø4.2 mm

Key Features

• HSS-Co material provides excellent durability and long tool life.
• TiAlN coating reduces friction and increases wear resistance.
• Spiral flute design efficiently evacuates chips from blind holes.
• Produces precise M5 × 0.8 metric threads.
• Suitable for professional workshop and industrial applications.

Applications

This spiral tap is designed for cutting internal M5 × 0.8 threads in steel, stainless steel, aluminium, and other machinable materials. For the best results, use cutting oil and pre-drill the hole with a Ø4.2 mm drill bit.

Recommended Accessory

For optimal threading results, we recommend using an HSS-Co Ø4.2 mm drill bit (Code: GRA0042), which provides the correct hole diameter for M5 × 0.8 thread cutting.

FAQ

What drill size should be used for an M5 × 0.8 thread?

A Ø4.2 mm drill bit is recommended to achieve the correct hole diameter before tapping.

Is this tap suitable for blind holes?

Yes. The spiral flute design efficiently removes chips upward, making it ideal for threading blind holes.

What are the advantages of HSS-Co over standard HSS?

HSS-Co contains cobalt, providing higher heat resistance, improved wear resistance, and longer service life, especially when machining harder materials.

Should cutting oil be used?

Yes. Using cutting oil reduces friction, improves thread quality, and significantly extends the service life of the tap.