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An Addison Spiral Flute Tap 5×0.8 is a precision threading tool used to cut or repair internal threads in metals, plastics, or other machinable materials. The “5×0.8” indicates a 5 mm metric diameter with a 0.8 mm thread pitch, meaning the distance between each thread is 0.8 mm. Its spiral flute design allows efficient chip removal, reducing clogging and producing smooth, accurate threads, particularly useful in blind holes. Made from durable materials such as high-speed steel (HSS), this tap offers excellent hardness, wear resistance, and long-lasting performance. It is commonly used in metalworking, automotive, and industrial applications requiring precise, strong internal threads.

The Addison 56x5.5 Spiral Flute Tap is a premium threading tool designed for precision and efficiency in industrial and workshop applications. Made from high-quality high-speed steel (HSS), it ensures excellent durability, heat resistance, and long-lasting performance. The spiral flute design facilitates smooth chip evacuation, making it ideal for threading through blind holes or materials that produce continuous chips. Specifically engineered to cut M56 threads with a 5.5 mm pitch, this tap delivers clean, accurate threads with minimal effort. Perfect for metalworking, automotive, or heavy machinery tasks, the Addison 56x5.5 Spiral Flute Tap combines precision, reliability, and professional-grade performance.

An 4 x 0.75 Addison spiral flute tap is a specialized threading tool used to cut M4 metric internal threads with a 0.75 mm pitch, manufactured by Addison. Its spiral flute design helps lift chips out of the hole — especially useful when threading blind holes — thereby reducing clogging and improving thread quality. Made from durable High-Speed Steel (HSS) (often with cobalt‑enhancement), it offers good hardness, heat resistance, and wear life

An HSSE 1/8 × 27 NPSF spiral fluted tap is a specialized threading tool designed to cut or repair internal threads in metals and other machinable materials. The “1/8” refers to the nominal pipe size, while “27” indicates 27 threads per inch following the NPSF (National Pipe Straight Fuel) standard, commonly used for straight, non-tapered threads in fuel or hydraulic systems. Made from HSSE (High-Speed Steel with Cobalt), this tap provides superior hardness, heat resistance, and durability for demanding applications. Its spiral fluted design efficiently removes chips from the hole, ensuring precise, clean threads, especially in blind holes or high-strength materials.

The 36x4 Inch Addison Spiral Flute Tap is a precision threading tool engineered for professional and industrial applications. Made from high-speed steel (HSS), it offers excellent durability, heat resistance, and long-lasting performance. Its spiral flute design efficiently removes chips, making it ideal for blind holes or materials that produce continuous chips, ensuring smooth and accurate threading. Specifically designed to cut M36 threads with a 4 mm pitch, this tap delivers clean, consistent threads with minimal effort. Perfect for metalworking, automotive, or heavy machinery tasks, the 36x4 Inch Addison Spiral Flute Tap combines precision, reliability, and professional-grade performance in every use.

The 14x2 Inch Addison Spiral Flute Tap is a high-precision threading tool designed for professional and industrial use. Crafted from durable high-speed steel (HSS), it provides excellent wear resistance, heat tolerance, and long-lasting performance. The spiral flute design ensures smooth chip evacuation, making it ideal for blind holes or materials that produce continuous chips. Engineered to cut M14 threads with a 2 mm pitch, this tap delivers clean, accurate threads with minimal effort. Suitable for metalworking, automotive, and mechanical applications, the 14x2 Inch Addison Spiral Flute Tap combines efficiency, reliability, and precision, making it an essential tool for any workshop.

An HSSE RP 1/2 BSP spiral fluted tap is a specialized tool used to cut or repair internal threads in metals and other machinable materials. The “1/2” denotes a nominal pipe size of ½ inch, while “BSP” refers to the British Standard Pipe thread standard. The “RP” indicates a parallel (straight) thread type, commonly used in plumbing and hydraulic systems. Made from HSSE (High-Speed Steel with Cobalt), this tap provides superior hardness, heat resistance, and durability for demanding applications. The spiral fluted design efficiently evacuates chips from the hole, ensuring clean, precise threads, particularly in blind holes or tough materials, for secure and reliable connections.

An Addison Spiral Flute Tap 27×3 is a specialized threading tool used to cut or repair internal threads in metals or other machinable materials. The “27×3” indicates a 27 mm diameter with a 3 mm thread pitch, meaning the distance between each thread is 3 mm. The spiral flute design allows efficient chip removal, reducing clogging and producing cleaner, more precise threads—especially useful in blind holes. Made from durable materials such as high-speed steel (HSS), this tap offers excellent hardness, wear resistance, and long-lasting performance. It is widely used in metalworking, automotive, and industrial applications requiring accurate, strong, and smooth internal threads.

An M4 x 0.7 HSSE spiral tap is a high-performance threading tool used to cut or repair internal threads in metals, plastics, and other machinable materials. The “M4” indicates a metric thread with a 4 mm diameter, while “0.7” specifies the thread pitch, meaning the distance between threads is 0.7 mm. Made from HSSE (High-Speed Steel with Cobalt), this tap offers superior hardness, heat resistance, and durability, making it suitable for tougher materials and high-speed applications. Its spiral flute design efficiently evacuates chips from the hole, ensuring clean, precise threads. Ideal for automotive, mechanical, and industrial applications requiring strong and accurate threaded connections.

A spiral flute tap set is a specialized threading tool kit used for cutting internal threads in materials such as metal, plastic, or wood. Unlike straight-flute taps, spiral flutes feature twisted grooves that efficiently lift and evacuate chips out of the hole, reducing clogging and improving thread quality. This makes them ideal for blind holes, where chips cannot escape freely. Spiral flute tap sets usually include multiple taps—taper, intermediate, and bottoming—to ensure accurate threading from start to finish. Made from durable materials like high-speed steel, these sets provide precision, longevity, and smooth cutting performance, making them essential for metalworking and mechanical applications.

An HSSE 1/2‑inch NPT spiral‑fluted tap is a specialized threading tool used to cut or restore internal tapered threads conforming to the NPT (National Pipe Taper) standard — specifically the ½‑inch size (typically ½‑14 NPT). Key features and uses:

• HSSE construction — made from High‑Speed Steel with added cobalt (or equivalent alloy), giving the tap enhanced hardness, heat resistance, and wear life compared with plain HSS — a big advantage when threading harder steels or doing repetitive work. Cutting Tool Engineering+2kota cutting tools (kotakct)+2

• Spiral‑flute design — the helical grooves help lift chips out of the hole as threads are cut, rather than letting them pack at the bottom. This makes it much better suited for blind‑hole threading or tighter tap‑pockets, and helps avoid tool breakage or damaged threads. Travers Tool+2Cutting Tool Engineering+2

• Pipe thread (tapered) application — used for tapping internal pipe fittings or plumbing components where a tapered, pressure‑tight thread is required. Because NPT threads are tapered, they seal by the taper and usually require a thread sealant (Teflon tape or pipe compound) for leak‑free joints. Kennametal+2LongSheng+2

• Material & suitability — HSSE spiral‑fluted NPT taps are effective on mild and alloy steels, stainless steels, and other metals up to moderate hardness (often up to ~35 HRC), making them well-suited for general plumbing, hydraulic, and industrial piping work. Sowa Tool+1

In short: this tap is especially useful when you need reliable, clean, leak‑ready internal ½″ NPT threads — particularly in blind or hard‑to‑reach holes — with good durability and chip‑control.

If you like, I can also give you a short guide: how to select and use a ½″ NPT spiral‑flute HSSE tap properly, including drill size, lubrication, and tapping tips.

The HSSE M30 × 3.5 Spiral Fluted Tap is a high-performance tool designed for cutting internal threads in tough metals, including stainless steel and high-strength alloys. Made from High-Speed Steel with Cobalt (HSSE), it offers superior hardness, heat resistance, and long-lasting durability for demanding industrial and metalworking applications. With a 30mm diameter and 3.5mm thread pitch, it ensures precise, clean threads for bolts and fasteners. Its spiral flute design efficiently removes chips from through-holes or blind holes, reducing the risk of breakage and ensuring smooth, accurate threading. Ideal for automotive, industrial, and heavy-duty metalworking tasks.

The HSSE Spiral Tap M10x1.5 is a professional-grade tool designed for cutting internal threads in a variety of metals, including stainless steel and other tough materials. Made from High-Speed Steel with Cobalt (HSSE), it provides superior hardness, heat resistance, and long-lasting durability. The spiral flute design efficiently removes chips upward, preventing clogging and reducing the risk of tap breakage, making it ideal for through-holes and blind holes. With a 10mm diameter and 1.5mm thread pitch, this tap ensures precise, clean threading for bolts and fasteners. It is perfect for industrial, automotive, and metalworking applications requiring reliability and accuracy.

An Addison Spiral Flute Tap 20×2.5 is a high-precision tool used for cutting or repairing internal threads in metals, plastics, or other machinable materials. The “20×2.5” indicates a 20 mm metric diameter with a 2.5 mm thread pitch, meaning the distance between each thread is 2.5 mm. Its spiral flute design efficiently evacuates chips from the hole, reducing clogging and ensuring smooth, accurate threads, especially in blind holes. Made from durable high-speed steel (HSS), this tap provides excellent hardness, wear resistance, and long-lasting performance. It is widely used in metalworking, automotive, and industrial applications for reliable, strong, and precise internal threading.

An HSSE 1½ x 12 UNF spiral fluted tap is a high-quality threading tool designed to cut 1½-inch Unified National Fine (UNF) threads with 12 threads per inch. Made from HSSE (High-Speed Steel with Cobalt), it offers excellent hardness, heat resistance, and durability for threading tough metals like stainless steel, alloy steel, and hardened materials. The spiral flute design efficiently evacuates chips, making it ideal for blind holes and preventing clogging during cutting. Widely used in heavy engineering, automotive, and industrial applications, this tap provides precise, smooth, and consistent threads while extending tool life and ensuring reliable, high-quality thread formation.

The HSSE M42 × 4.5 Spiral Fluted Tap is a high-performance tool engineered for cutting internal threads in tough metals, including stainless steel and high-strength alloys. Made from High-Speed Steel with Cobalt (HSSE), it provides superior hardness, heat resistance, and long-lasting durability. With a 42mm diameter and 4.5mm thread pitch, this tap ensures precise, clean threads for large bolts and fasteners. The spiral flute design efficiently lifts chips out of blind holes, reducing breakage risk and ensuring smooth operation. Ideal for industrial, automotive, and heavy-duty metalworking applications, it delivers accuracy, reliability, and efficiency in demanding threading tasks.