Spiral point geometry
A spiral point route for suitable through-hole threading where chip movement and machine conditions support the geometry.
Spiral Point Hand Tap - SPPT
Product-family image shown for this SPPT route. Confirm the selected configuration in your quotation.
Spiral point tap manufacturer · Ludhiana, India
Spiral Point
Hand Tap - SPPT
Spiral point geometry for suitable through-hole threading.
SWAGIN HSS spiral point hand taps are listed for suitable through-hole threading where the machine, material, hole preparation, chip movement and thread standard are reviewed together. Share the exact requirement for a standard, bulk, export or custom enquiry.
M2 · M35 · M42Material grades6–100 mmListed size range62–64 HRCListed hardness
Product overview
Spiral point threading matched to the job.
Spiral point tap selection depends on through-hole access, workpiece material, chip flow, machine cycle, lubrication, thread depth and the required thread specification.
SPPT selection is not based on size alone. Confirm the hole type, thread standard, tolerance, geometry, coating, dimensions and process conditions in the quotation.
Application-led review
Details that help
you choose.
Review the tool against the actual material, machine and hole. No universal tool-life, throughput or cost-saving result is guaranteed.
HSS grade choices
Discuss M2, M35 or M42 according to the workpiece material, machine and production requirement.
Ground-thread finish
Supports controlled thread formation and dimensional review for the selected configuration.
Through-hole review
Confirm hole type, depth, chip direction, lubrication, alignment and tapping cycle before selection.
Thread-family coverage
Metric, British, unified and pipe-thread requirements can be reviewed against the exact drawing.
Bulk and custom review
Share size-wise quantities, tolerance, coating, inspection and repeat-production requirements.
Technical information
Confirm the right SPPT configuration.
These are listed product-family details. Confirm exact dimensions, grade, coating, tolerance, gauge, availability and commercial terms in the quotation.
ProductSpiral Point Hand Tap - SPPT
Material gradesM2 (HSS), M35 (HSS-E), M42 (HSS-ECO)
Hardness62-64 HRC
Listed size range6 mm to 100 mm
FinishGround thread
Specification referencesIS 6175 Part 2:1992, IS 6175 Part 4:1991 and BS 949 Part 2:1979
Thread forms60 degrees and 55 degrees
Tolerance6H, 6G, 7H, Z-3, Z-4 or required gauge
FlutesStraight flutes; 4-flute or 6-flute options
Lead / chamfer2-thread, 4-thread or 6-thread lead
Coating names listedGolden TiN, Futura and Alcoran
Country of originIndia
Thread families
Find the thread
you need.
These are enquiry options, not a live inventory claim. Send the exact component drawing where a thread designation is ambiguous.
MetricCoarse pitch · Fine pitch
BritishBSW · BSF · BA · BSCY · BSB
UnifiedUNC · UNF
Pipe and fittingBSP · BSPT · NPT · NPS · NPSF · NGT · NPTF · NPSI · NPSM
Practical thread reference
Know the thread.
Specify it clearly.
For HSS taps and dies, metric pitch is measured in millimetres; inch threads are usually specified in TPI (threads per inch).
| Thread name | Full name / meaning | Example size |
|---|---|---|
| M – Metric Coarse | ISO metric coarse thread | M10 × 1.5 mm |
| Metric Fine / MF | ISO metric fine thread; normally marked M with pitch | M10 × 1.0 mm |
| UNC | Unified National Coarse | 1/2″–13 UNC |
| UNF | Unified National Fine | 1/2″–20 UNF |
| UNEF | Unified National Extra Fine | 1/2″–28 UNEF |
| UN | Unified constant-pitch series, such as 8-UN, 12-UN and 16-UN | 1-1/2″–8 UN |
| UNS | Unified National Special | 1/2″–24 UNS |
| UNR | Unified thread with a rounded external root | Specify size, TPI and series |
| UNJ / UNJC / UNJF / UNJS | Unified J-profile threads, including coarse, fine and special series | Specify complete drawing designation |
| BSW | British Standard Whitworth, coarse | 1/2″–12 BSW |
| BSF | British Standard Fine | 1/2″–16 BSF |
| BSPP / G | British Standard Pipe Parallel | G 1/2 |
| BSPT / R | British Standard Pipe Taper; R denotes external taper | R 1/2 |
| Rc / Rp | BSP mating internal threads: Rc taper, Rp parallel | Rc 1/2 or Rp 1/2 |
| NPT | National Pipe Taper | 1/2″–14 NPT |
| NPTF | Dryseal National Pipe Taper | 1/2″–14 NPTF |
| NPSM / NPSL / NPSC | American straight pipe-thread series for different applications | Specify exact series |
| BA | British Association thread | 0 BA, 2 BA, 4 BA |
| BSB | British Standard Brass thread | Diameter × TPI BSB |
| BSC / CEI | British Standard Cycle / Cycle Engineers’ Institute | Diameter × TPI BSC |
| ACME | Inch trapezoidal thread, 29° profile | Diameter × TPI ACME |
| Stub ACME | Shallower ACME thread | Diameter × TPI Stub ACME |
| Tr | Metric trapezoidal thread, 30° profile | Tr20 × 4 |
| Buttress | Asymmetric thread for heavy axial loads | Specify standard and profile |
| Rd | Round thread | Specify standard, diameter and pitch |
How to read an order size
- M10 × 1.5: 10 mm nominal diameter, 1.5 mm pitch.
- 1/2″–13 UNC: 1/2 inch nominal diameter, 13 TPI, UNC thread.
- Pitch in mm = 25.4 ÷ TPI.
- RH / LH: right-hand / left-hand thread.
- Pipe sizes are nominal: a 1/2″ BSP or NPT thread does not have a 12.7 mm outside diameter.
Unified thread families are covered by ASME B1.1. This practical industry list includes common metric, Unified, British and pipe series; it is not every specialist thread standard worldwide.
For quotationsWrite diameter + pitch/TPI + thread standard + RH/LH + tolerance class, where applicable.Discuss your thread requirement
Industrial uses
Your component.
Your through-hole route.
Illustrative industry applications, not customer or project claims. Discuss the drawing, material, machine, hole and production quantity with the manufacturer.
01
Nuts and fasteners
Internal threads in nuts and internally threaded components. Review a dedicated nut or machine tap for volume production.
Herusutimbul / CC BY-SA 4.0Discuss this application
02
Tool rooms, dies and moulds
Jigs, fixtures, die plates and tooling accessories where hardness, access and blind-hole clearance are suitable.
Discuss this application
03
Bicycle and cycle parts
Selected brackets and assemblies. Confirm special pitches, handedness and the exact component drawing.
Russ from Grosse Pointe Park / CC BY 2.0Discuss this application
04
Automotive and auto parts
Brackets, housings, fixtures and repair components. Distinguish manual work from repeated machine production.
Discuss this application
05
General engineering
Machine components, assemblies and workshop fixtures matched to the material and thread depth.
Discuss this application
06
Pumps, valves and fittings
Mounting holes and threaded ports where parallel, taper and sealing requirements are confirmed.
Saud / CC BY-SA 4.0Discuss this application
07
Agricultural machinery
Brackets, replacement components and machinery fixtures selected for the access and repair condition.
Bidemi Bernice / CC0 1.0Discuss this application
08
Maintenance and repair
Replacement-part preparation and damaged-thread assessment. An insert may be needed where material is missing.
Shixart1985 / CC BY 2.0Discuss this application
09
Aircraft, aerospace and space
Drawing-led fixtures and qualified manufacturing-process enquiries. No blanket aerospace approval is claimed.
Discuss this application
10
Electrical and electronics industries using HSS taps
Enclosures, panels, motor assemblies and electrical hardware where thread size, material and insulation constraints are reviewed.
Discuss this applicationSPPT enquiry
Tell us what you need.
We will review the route.
Share the thread, material, machine, hole type, quantity, coating or drawing reference. The enquiry is sent to the configured company inbox.
Buyer questions
Clear answers
before you order.
What is a spiral point tap used for?
It is used for suitable through-hole threading operations where the spiral point geometry supports chip movement and the machine process.
What sizes are listed?
The source product information lists 6 mm to 100 mm. Confirm the exact size, pitch, standard and availability in the quotation.
Is SPPT suitable for every material?
No. Selection depends on the workpiece material, hole type, machine, lubrication, thread requirement and production cycle.
Which material grades are available?
The listed options are M2, M35 and M42. Grade selection depends on the workpiece and process.
Can you support bulk or custom requirements?
Yes. Share size-wise quantities, drawings, tolerance, coating, inspection and delivery requirements for review.
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