(TC728) HSS-E (M35) BSP-G Whitworth Pipe Threads Spiral Flute Tap
Bright HSS-E BSP-G taps for blind holes
- SKU
- TC728200
Key features
- HSS-E machine taps with bright surface treatment
- 55° G BSP thread form to DIN ISO 228/1
- Special flute geometry for blind-hole tapping
Made in South Korea
Blind-hole capability
Special flute geometry supports chip evacuation during blind-hole pipe thread tapping.
Standard BSP-G threads
Forms 55° G BSP Whitworth pipe threads to DIN ISO 228/1.
Useful size coverage
Six available sizes cover G1/8–28 through G1–11 thread requirements.
| SKU | Size | TPI | Thread length (mm) | Overall length (mm) | Neck length (mm) | Shank dia. (mm) | Square size (mm) | Square length (mm) | Flutes | Tapping drill dia. (mm) | Stock | Price | Qty | Add |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TC728200 | G1/8 | 28 | 20.0 | 90.0 | 36.0 | 7.0 | 5.5 | 8.0 | 3 | 8.8 | Low stock | $42.30 | ||
| TC728400 | G1/4 | 19 | 22.0 | 100.0 | 40.0 | 11.0 | 9.0 | 12.0 | 3 | 11.8 | Low stock | $51.10 | ||
| TC728480 | G3/8 | 19 | 22.0 | 100.0 | 40.0 | 12.0 | 9.0 | 12.0 | 3 | 15.25 | In stock | $59.30 | ||
| TC728560 | G1/2 | 14 | 25.0 | 125.0 | 50.0 | 16.0 | 12.0 | 15.0 | 4 | 19.0 | Low stock | $86.20 | ||
| TC728700 | G3/4 | 14 | 28.0 | 140.0 | 54.0 | 20.0 | 16.0 | 19.0 | 4 | 24.5 | In stock | $149.20 | ||
| TC728780 | G1 | 11 | 30.0 | 160.0 | 60.0 | 25.0 | 20.0 | 23.0 | 4 | 30.75 | Low stock | $218.50 |
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View Comparison- Overview
- Specifications
- Work Material
- Reviews
YG-1 TC728 HSS-E BSP-G Whitworth pipe thread spiral flute taps provide bright-finish machine tapping for blind holes. Special flute geometry supports efficient chip evacuation where blind-hole pipe threads are required. These DIN 5156 taps form 55° G BSP threads to DIN ISO 228/1. Available sizes run from G1/8–28 to G1–11, with three or four flutes. Recommended material groups include steels, stainless steel, cast irons, aluminium, and copper alloys. Choose the matching tapping drill diameter from 8.8 mm to 30.75 mm. The bright surface treatment suits the TC728 series configuration specified for this pipe-thread tapping range. Thread lengths span 20 to 30 mm, supporting the listed G-thread size range.
- HSS-E machine taps with bright surface treatment
- 55° G BSP thread form to DIN ISO 228/1
- Special flute geometry for blind-hole tapping
- G1/8–28 to G1–11 thread size range
- Three or four flutes throughout the series
- Tapping drill diameters from 8.8 mm to 30.75 mm
| Surface Treatment | Bright |
| Tool Material | HSS-E |
Work materials
VDI 3323 recommendations for this tool.
Steel
5 gradesNon-ferrous materials
7 gradesCast iron
2 gradesVDI grade reference14 grades
Individual grade ratings and nominal hardness references. Base grades and decimal subgrades are listed separately.
| VDI | Work material | Recommendation | HB ref. | HRC ref. |
|---|---|---|---|---|
| 2 | PNon-alloy steel | Excellent | 190 | 13 |
| 3 | PNon-alloy steel | Excellent | 250 | 25 |
| 4 | PNon-alloy steel | Excellent | 270 | 28 |
| 6 | PLow-alloy steel | Excellent | 180 | 10 |
| 7 | PLow-alloy steel | Excellent | 275 | 29 |
| 17 | KNodular cast iron | Excellent | 160 | 3 |
| 18 | KNodular cast iron | Excellent | 250 | 25 |
| 21 | NWrought aluminium | Good | 60 | - |
| 22 | NWrought aluminium | Good | 100 | - |
| 23 | NCast aluminium | Good | 75 | - |
| 24 | NCast aluminium | Good | 90 | - |
| 25 | NCast aluminium | Excellent | 130 | - |
| 26 | NCopper, bronze and brass | Excellent | 110 | - |
| 27 | NCopper, bronze and brass | Good | 90 | - |
No grades match your search.
HB and HRC values are nominal catalogue references. Grade subdivisions can vary between catalogues.
Recommendations apply to the listed VDI grades. Unlisted grades have no stated recommendation.
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