(EL950) HSS-E (M35) Counterbore
HSS-E three-flute counterbores for 180° capscrews
- SKU
- EL950003
Key features
- HSS-E bright finish
- Three-flute counterbore design
- Solid pilot for 180° capscrew seating
Made in South Korea
Controlled pilot location
The solid pilot is designed for machining fillister screw caps and ejector caps in moulds.
Practical screw-size coverage
Medium-series options cover M3, M3.5, M4, M5, M6, M8, M10 and M12 screw sizes.
Three-flute HSS-E design
HSS-E bright counterbores provide a defined configuration for 180° capscrew seating work.
| SKU | Screw Size (mm) | Pilot Diameter (mm) | Cutter Diameter (mm) | Overall length (mm) | Shank dia. (mm) | Flutes | Stock | Price | Qty | Add |
|---|---|---|---|---|---|---|---|---|---|---|
| EL950003 | M3 | 3.4 | 6.0 | 71.0 | 5.0 | 3 | Low stock | $22.40 | ||
| EL950035 | M3.5 | 3.9 | 6.5 | 71.0 | 5.0 | - | 1-2 Weeks | $22.40 | ||
| EL950004 | M4 | 4.5 | 8.0 | 71.0 | 5.0 | - | Low stock | $17.90 | ||
| EL950005 | M5 | 5.5 | 10.0 | 80.0 | 8.0 | - | Low stock | $19.50 | ||
| EL950006 | M6 | 6.6 | 11.0 | 80.0 | 8.0 | - | Low stock | $21.10 | ||
| EL950008 | M8 | 9.0 | 15.0 | 100.0 | 12.5 | - | Low stock | $33.90 | ||
| EL950010 | M10 | 11.0 | 18.0 | 100.0 | 12.5 | - | Low stock | $40.10 | ||
| EL950012 | M12 | 14.0 | 20.0 | 100.0 | 12.5 | - | Low stock | $43.20 |
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- Specifications
- Work Material
- Reviews
YG-1 EL950 HSS-E three-flute counterbore is a bright-finish tool for 180° capscrew seating. It uses a solid pilot to machine fillister screw caps or ejector caps in moulds. Medium-series options cover M3 to M12 screw sizes, with pilot diameters from 3.4 to 14 mm. Cutter diameters span 6 to 20 mm and pair with plain shanks. Plain shank diameters range from 5 to 12.5 mm, while overall lengths range from 71 to 100 mm. Three flutes support the series design for the specified 180° capscrew application. These counterbores are intended for screw-cap and ejector-cap machining in mould applications where a solid pilot is required.
- HSS-E bright finish
- Three-flute counterbore design
- Solid pilot for 180° capscrew seating
- Medium series for M3 to M12 screw sizes
- Pilot diameters from 3.4 to 14 mm
- Cutter diameters from 6 to 20 mm
| Tool Material | HSS-E |
Work materials
VDI 3323 recommendations for this tool.
Steel
11 gradesNon-ferrous materials
4 gradesVDI grade reference15 grades
Individual grade ratings and nominal hardness references. Base grades and decimal subgrades are listed separately.
| VDI | Work material | Recommendation | HB ref. | HRC ref. |
|---|---|---|---|---|
| 1 | PNon-alloy steel | Excellent | 125 | - |
| 2 | PNon-alloy steel | Excellent | 190 | 13 |
| 3 | PNon-alloy steel | Excellent | 250 | 25 |
| 4 | PNon-alloy steel | Excellent | 270 | 28 |
| 5 | PNon-alloy steel | Excellent | 300 | 32 |
| 6 | PLow-alloy steel | Excellent | 180 | 10 |
| 7 | PLow-alloy steel | Excellent | 275 | 29 |
| 8 | PLow-alloy steel | Excellent | 300 | 32 |
| 9 | PLow-alloy steel | Good | 350 | 38 |
| 10 | PHigh-alloy and tool steel | Excellent | 200 | 15 |
| 11 | PHigh-alloy and tool steel | Good | 325 | 35 |
| 21 | NWrought aluminium | Good | 60 | - |
| 22 | NWrought aluminium | Good | 100 | - |
| 23 | NCast aluminium | Good | 75 | - |
| 24 | NCast aluminium | 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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