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Cylindrical roughing end mill, four flutes, gold coating

YINGHUA

YINGHUA 8x8x20x60MM 4 Flutes HRC45 Altin Coated Solid Carbide Roughing End Mill

SKU CH-P3JK-84KBX

A 4-flute HRC45 AlTiN coated solid carbide roughing end mill for aluminium, cast iron, steel, stainless steel and copper

  • Product typeRight-Angle Drills
  • Altin coating reduces heat buildup during roughing
  • Four flutes evacuate chips efficiently in metal
  • HRC45 hardness withstands abrasive steel and cast iron
  • Solid carbide body maintains edge life in aluminium
  • 20 mm cutting length suits deep pocket milling

8 mm 4-Flute Roughing End Mill

This solid-carbide roughing end mill has an 8 mm cutting diameter and 8 mm shank for CNC milling of aluminium cast iron, steel, stainless steel and copper. The Altin coating and HRC45 substrate target high material-removal rates in production and prototype work. It suits machinists who need aggressive stock removal without changing tools.

Direct shank fit for standard collets

The 8 mm shank seats directly in common ER collets or shrink-fit holders, so no adapter sleeves are required. Run-out stays low when the holder is clean and the collet is torqued to the machine maker’s value. Vibration can appear if the tool overhang exceeds the 20 mm flute length without support.

Steady cutting under continuous load

The four-flute geometry and Altin coating dissipate heat during long roughing passes in steel or stainless steel. Chip evacuation remains consistent through the 20 mm flute length at the documented HRC45 hardness. The tool is not intended for finishing passes that demand tighter tolerances or polished surfaces.

How it compares

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

Price $36.99
Cheaper than about 68% of the 2,412 comparable items (median $81.99).

Specifications

Product
Product typeRight-Angle Drills

Questions about this item

How can I confirm the end mill is cutting correctly after installing it in my CNC machine?

Observe chip formation during the first pass; consistent, curled chips and a smooth surface on aluminium cast iron, steel, stainless steel or copper indicate the 4-flute roughing geometry is performing as designed.

What comes in the package and is any accessory required before first use?

The box contains the 8 mm diameter solid carbide end mill with AlTiN coating in a randomly coloured sleeve; no collet, holder or coolant is included, so ensure your spindle accepts an 8 mm shank and select appropriate cutting fluid for the workpiece material.

Which specification should I match when choosing this cutter for a job?

Select this tool when the operation calls for a 20 mm flute length, 60 mm overall length and HRC45 substrate hardness, as those dimensions define the reach and rigidity envelope for roughing passes in the listed metals.

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