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Tapered ball nose end mill, coated carbide, 6 mm shank, 50 mm overall length

YINGHUA

YINGHUA R0.25x20.5xD6x50L HRC55 Tapered Ball Nose End Mill carbide cutter

SKU CH-9CFV-1XSJC

Tungsten solid carbide tapered ball nose end mill with R0.25 radius and 50 mm overall length for CNC milling

  • Product typeRight-Angle Drills
  • Precise 0.25 mm radius suits fine-detail CNC engraving
  • HRC 55 carbide hardness resists wear in abrasive materials
  • 5 mm flute reach accesses deep cavities without deflection
  • 6 mm shank diameter fits standard ER collets directly
  • 50 mm overall length balances rigidity and tool clearance

Precision CNC milling cutter

The YINGHUA tapered ball nose end mill is a solid tungsten carbide cutting tool designed for CNC machining operations. It serves engineers and machinists who need precise contouring and profiling in industrial applications. The coated carbide construction provides durability for demanding milling tasks.

Hardness and length define the working envelope

With a hardness rating of HRC55, the cutter handles abrasive materials but requires rigid machine setups to prevent chipping. The overall length of 50 mm and a taper length of 20.5 mm limit reach in deep cavities. Users must match the 3.175 mm, 4 mm, 6 mm or 8 mm shank to their collet or holder.

The R0.25 mm ball radius sets the finish detail

This corner radius is the single specification that determines the smallest fillet and surface finish achievable. If the design requires a tighter radius, this tool cannot produce it. The cutter is not for hand-held use and is restricted to operators aged 18 and over.

How it compares

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

Price $30.99
Cheaper than about 72% of the 2,412 comparable items (median $81.99).

Specifications

Product
Product typeRight-Angle Drills

Questions about this item

Which shank diameter fits my CNC collet — 3.175 mm, 4 mm, 6 mm or 8 mm?

Match the shank to your collet size; the cutter is offered in 3.175 mm, 4 mm, 6 mm and 8 mm shanks so you can select the one that clamps securely.

What does the R0.25 radius mean for the finished contour?

The 0.25 mm corner radius produces a very fine fillet on each pass, suited to detailed 3-D profiling and finishing cuts.

How does the HRC55 carbide grade affect tool life in hardened steel?

The HRC55 tungsten carbide substrate resists wear when milling materials up to roughly 55 HRC, extending edge life in hardened workpieces.

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