BSP(G) Spiral Groove Thread Tap | BEYOND High Precision British Standard Pipe Tap

$27.89 USD

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size: G 1/16"x28 1/8"x28

G 1/16"x28 1/8"x28
G 1/8"x28
G 1/4"x19 3/8"x19
G 3/8"x19
G 1/2"3/4"x14
G 1"1 1/2"2"2 1/2"x11
RC 1/16"x28 1/8"x28
RC 1/8"x28
RC 1/4"x19 3/8"x19
RC 3/8"x19
RC 1/2"3/4"x14
RC 1"1 1/2"1 1/2"2"2 1/2"x11
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Description

BSP(G) Spiral Groove Thread Tap | BEYOND

The BEYOND BSP(G) Spiral Groove Thread Tap is designed for precision threading of British Standard Pipe (BSP) and BSPT threads. Manufactured with premium-grade carbide or high-speed steel (HSS), it provides excellent cutting performance, chip evacuation, and thread accuracy in CNC machining and manual tapping applications.

Features

  • Conforms to BS 2779:1956 standard for BSP(G) threads (55° thread angle).
  • Spiral groove design ensures smooth chip evacuation—ideal for blind holes.
  • High precision and long service life for consistent internal thread quality.
  • Available in a range of sizes from 1/16" to 2 1/2".
  • Suitable for CNC machining centers, lathes, and tapping machines.

Technical Parameters

Thread Size Pitch (tpi) D (mm) D2 (mm) L (mm) Le (mm) Flute No. Tooth No. Bottom Hole Ø (mm)
1/16" × 28 28 6.0 5.8 57 16.3 3 18 6.7
1/8" × 28 28 8.0 7.7 60 20.3 3 22 8.7
1/4" × 19 19 10.9 9.9 73 26.7 4 20 11.8
3/8" × 19 19 13.6 13.4 92 33.4 4 25 15.2
1/2" × 14 14 16.0 15.7 92 43.5 5 24 19.0
1"–2 1/2" × 11 11 20.0–19.9 104 41.6 5 18 30.7

Recommended Cutting Conditions

Suggested cutting speeds and feed rates for different materials:

Material Hardness Cutting Speed (m/min) Feed Rate (mm/min)
Carbon Steel / Alloy Steel ~30HRC 120–200 400–900
Pre-hardened Steel ~40HRC 100–150 350–800
Stainless Steel — 80–130 300–700
Hardened Steel ~50HRC 70–110 250–600

Applications

  • For threading BSP and BSPT pipe fittings in plumbing, hydraulic, and pneumatic systems.
  • Ideal for general engineering, mold manufacturing, and precision machinery.
  • Suitable for both manual and CNC tapping.

Material and Coating Options

  • Material: Solid Carbide or High-Speed Steel (HSS-E)
  • Coating: TiN, TiAlN, or AlCrN for extended tool life

Advantages of BEYOND BSP(G) Taps

  • Precision-ground cutting edges for clean, accurate thread profiles.
  • Optimized spiral flute geometry for excellent chip evacuation.
  • Durable tool performance with consistent thread accuracy.
  • Competitive factory-direct pricing with global export quality.

BEYOND — Professional Cutting Tool Solutions for CNC and Precision Machining.

Additional Information
size

G 1/16"x28 1/8"x28, G 1/8"x28, G 1/4"x19 3/8"x19, G 3/8"x19, G 1/2"3/4"x14, G 1"1 1/2"2"2 1/2"x11, RC 1/16"x28 1/8"x28, RC 1/8"x28, RC 1/4"x19 3/8"x19, RC 3/8"x19, RC 1/2"3/4"x14, RC 1"1 1/2"1 1/2"2"2 1/2"x11