We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Cylindrical solid carbide end mill with four flutes and gold Altin coating

YINGHUA

YINGHUA 20x20x45x100MM 4 Flutes HRC45 Altin Coated Solid Carbide Roughing End Mill

SKU CH-21C0-W4FS4

A four-flute solid carbide roughing end mill with Altin coating for milling aluminium, cast iron, steel, stainless steel and copper

  • Product typeRight-Angle Drills
  • 4-flute design removes material quickly in roughing passes
  • AlTiN coating resists heat when cutting aluminium, steel and stainless steel
  • HRC45 carbide substrate maintains edge hardness under heavy loads
  • 20 mm shank fits standard CNC holders for secure clamping
  • 100 mm overall length provides reach for deep-pocket milling

20 mm roughing end mill for CNC milling

This 20 mm diameter solid carbide roughing end mill is built for CNC milling of aluminium, cast iron, steel, stainless steel and copper. The AlTiN coating reduces friction and heat during aggressive material removal. Four flutes provide stable chip evacuation in heavy cuts. The tool is supplied new and individually packaged for immediate workshop use.

Sustained cutting performance with AlTiN coating

Under continuous load the AlTiN coating maintains hardness and oxidation resistance, allowing the cutter to run at higher temperatures without rapid wear. The HRC45 substrate resists deflection during deep slotting and pocketing operations. Four flutes distribute cutting forces evenly, reducing vibration during long passes. The solid carbide body prevents shank flex that would otherwise degrade surface finish over time.

Practical limits of solid carbide roughing

The 100 mm overall length and 45 mm flute length define the maximum reach and depth of cut for this tool. Solid carbide construction makes the cutter brittle; excessive side load or interrupted cuts can cause chipping. The right-hand helix suits conventional milling machines and CNC routers with standard collets. Users needing finer finishes or tighter tolerances should select a finishing geometry instead.

How it compares

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

Price $193.99
Pricier than about 78% of the 2,412 comparable items (median $81.99).

Specifications

Product
Product typeRight-Angle Drills

Questions about this item

How much heat and power draw should I expect from the HRC45 Altin coated carbide roughing end mill during continuous CNC milling?

The solid carbide construction with Altin coating reduces friction and heat buildup when roughing aluminium, cast iron, steel, stainless steel and copper, letting the tool run cooler under sustained cuts.

What machine and holder setup is required to run this 20 mm shank roughing end mill?

You need a CNC milling machine or router with a 20 mm collet or shrink-fit holder, sufficient spindle torque for roughing passes, and coolant or mist delivery for the listed metals.

Will this 100 mm overall length cutter clear fixtures on my older knee mill?

At 100 mm overall length with a 45 mm flute section, the tool reaches deep pockets while the 20 mm shank fits standard holders on older manual or CNC knee mills.

More in Power Drills, Drivers & Cutting Bits

Similar items