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Small tapered ball nose end mill with coated tungsten carbide flutes and cylindrical shank

YINGHUA

YINGHUA R0.5x20.5xD4x50L HRC55 Tapered Ball Nose End Mill

SKU CH-MS35-08QH7

HRC55 tungsten carbide tapered ball nose end mill with 0.5 mm radius and 20.5 mm cutting length for CNC milling

  • Product typeRight-Angle Drills
  • Precise 0.5 mm radius for fine detail
  • 5 mm flute reach for deep cavities
  • HRC 55 tungsten carbide holds sharp edge
  • Coated tapered cone resists wear in CNC milling
  • Shank options 3.175 mm to 8 mm fit multiple holders

R0.5 Tapered Ball Nose Mill

This YINGHUA cutter is a new tungsten solid carbide end mill with a HRC55 coating. It is intended for CNC milling operations where a tapered cone profile is required. The tool suits industrial engraving and cutting tasks performed by trained operators.

3.175 mm Shank and 50 mm Length

The shank diameter measures 3.175 mm and the overall length is 50 mm, with total length options ranging from 38 mm to 100 mm. These dimensions determine compatibility with specific collets and machine clearances during daily use. The coated carbide construction supports wear resistance in production environments.

Upgrade From Uncoated or Lower-Hardness Mills

This tool replaces uncoated or lower-hardness ball nose cutters when longer tool life and better finish are needed on abrasive materials. The jump is worth it for shops running repeated contouring passes on hardened workpieces. It is not for buyers who need larger radii or different shank sizes not listed here.

How it compares

Measured against everything we stock in Power Drills, Drivers & Cutting Bits, at today’s prices. Recalculated every night.

Price $21.99
Cheaper than about 80% of the 2,412 comparable items (median $81.99).

Specifications

Product
Product typeRight-Angle Drills

Questions about this item

What shank diameters does the R0.5x20.5xD4x50L end mill support?

The cutter is available with 3.175 mm, 4 mm, 6 mm, or 8 mm shank diameters to match common CNC collets.

What overall length range must the tool holder accommodate?

Total length spans 38 mm to 100 mm depending on the selected shank option.

How should the coated tungsten carbide cutter be mounted to avoid runout?

Seat the shank fully in a clean, matched collet, tighten evenly, and verify concentricity before starting the spindle.

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