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Tungsten carbide tapered ball nose end mill, coated finish, 6 mm shank, 50 mm overall length

YINGHUA

YINGHUA R0.5x20.5xD6x50L HRC55 Tapered Ball Nose End Mill fastener

SKU CH-6H4F-05PQB

Tungsten solid carbide tapered ball nose end mill with HRC55 hardness for CNC milling

  • Product typeRight-Angle Drills
  • HRC55 hardness resists wear during heavy CNC milling
  • Tungsten solid carbide body maintains edge at high speeds
  • Coated tapered cone geometry improves chip evacuation
  • R0.5 ball nose with 20.5 mm reach cuts deep contours
  • 50 mm overall length fits standard 6 mm shank holders

YINGHUA HRC55 Tapered Ball Nose End Mill

This YINGHUA end mill is a tungsten solid carbide cutter with a coated tapered cone profile designed for CNC milling operations. It suits machinists and fabricators who need precise contouring and 3D profiling in metals and composites. The HRC55 hardness rating indicates a hard substrate that retains its edge under demanding feeds.

Right-angle drill format for industrial engraving

The tool is classified as a right-angle drill accessory and is intended solely for industrial cutting and engraving work. Buyers seeking a general-purpose drill bit for handheld use or woodworking should look at other categories. The safety notice restricts use to persons aged 18 and over.

R0.5 radius with 20.5 mm flute

The cutter features a 0.5 mm ball nose radius, a 20.5 mm cutting length and a 50 mm total length on a 6 mm shank. These dimensions determine whether the tool reaches the required depth and matches the machine holder. Verify the shank diameter and flute length against your setup before ordering.

How it compares

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

Price $26.99
Cheaper than about 75% of the 2,412 comparable items (median $81.99).

Specifications

Product
Product typeRight-Angle Drills

Questions about this item

How is the R0.5 tapered ball nose end mill installed and what step do people get wrong?

Clamp the 6 mm shank in an ER collet or shrink-fit holder rated for carbide, then torque to the holder maker's spec — the common error is using a side-lock flat on a round shank, which slips under CNC loads.

What maintenance or replacement will the HRC55 carbide cutter need later?

The coated tungsten carbide flutes cannot be re-sharpened economically; replace the tool once flank wear reaches the supplier's wear limit or the coating shows breakthrough.

What limit shows up first on this 50 mm overall length end mill under sustained CNC milling?

The 20.5 mm flute length and 0.5 mm tip radius concentrate deflection and heat, so tool deflection and coating degradation appear before the 6 mm shank reaches its strength limit.

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