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Five grey carbide end mills with four spiral flutes and square tips

SPEED TIGER

SPEED TIGER Micrograin Carbide Square End Mill 4 Flute ISE3/16 4T 5 Pieces 3/16

SKU CH-EC46-6S1XM

Five-piece carbide square end mill set with AlTiBN coating for milling steels up to HRC45

  • TypeEnd Mills

Option 3/16 In

Class 5 Packs

  • Cuts carbon and alloy steels up to HRC45 with micro-grain carbide
  • AlTiBN coating resists heat better than TiAlN, TiN or TiCN
  • Four-flute square end design suits general metalworking tasks
  • ISO-9001 factory grinding ensures consistent flute quality
  • Five-piece set provides spare cutters for continuous production

General-purpose carbide end mill

The SPEED TIGER Micrograin Carbide Square End Mill is a 4-flute cutter with a 3/16 inch diameter supplied in a five-piece pack. It is built for machinists and fabricators who need reliable material removal in carbon steels, alloy steels, pre-hardened steels up to HRC45 and cast iron.

Build integration and application scope

The inch-measurement shank fits standard collets and tool holders used in milling machines and CNC routers. The square-end geometry produces sharp-bottomed slots and pockets, while the AlTiBN coating reduces friction at elevated temperatures so the tool stays stable during extended cuts in hardened steel up to HRC45.

Sustained-load behaviour

Micro-grain carbide construction resists wear when cutting alloy steels in the HB225-325 range and carbon steels around HB225. The coating maintains hardness at high cutting speeds, limiting thermal degradation during long production runs. ISO-9001 factory grinding ensures consistent flute geometry so chip evacuation remains predictable over time.

Highlights

  • Cuts carbon and alloy steels up to HRC45 with micro-grain carbide
  • AlTiBN coating resists heat better than TiAlN, TiN or TiCN
  • Four-flute square end design suits general metalworking tasks
  • ISO-9001 factory grinding ensures consistent flute quality
  • Five-piece set provides spare cutters for continuous production

Specifications

TypeEnd Mills

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Questions about this item

What hardness of steel can this end mill cut before tool wear becomes the limiting factor?

The micrograin carbide with AlTiBN coating is rated for hardened steels up to HRC 45 and pre-hardened steels up to HRC 45, so sustained cutting beyond that hardness will accelerate wear fastest.

How much heat can the AlTiBN coating handle during continuous milling?

The AlTiBN coating provides superior heat resistance compared to TiAlN, TiN or TiCN, maintaining stability and wear resistance at the high cutting temperatures generated in alloy and hardened steels.

What shank size must my milling machine or router accept to use these 3/16" end mills?

The spec table lists a 1/4" shank for this diameter range, so your tool holder or collet must accommodate a 1/4" shank.

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