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high-speed steel

high-speed steel

1 5.3
A very hard metal used for cutting tools that stays hard when hot
  • noun
  • /haɪ-spid stiːl/
  • Specialized
translation icon : acero de alta velocidad
  • The engineer recommended using a high-speed steel tool for precision metal cutting.

So your typical cheapest ones are going to be high speed steel.

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Examples

  • I made the custom tool out of a high-speed steel cobalt parting tool (McMaster.com part number 3275A57).

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  • When working with hard materials, a high-speed steel drill bit is essential for efficient drilling.

  • This one's high speed steel and it would not braise to this mild steel.

  • And for home shops and hobbyists and prototype shops, high speed steel tooling is fine.

  • For best results, opt for high-speed steel tooling when machining tough metals.

Synonyms

tool steel
vshigh-speed steel
  • Specialized
1 5.5

Hard strong steel used to make blades and parts that stay sharp

focuses on heat resistance at high temperatures rather than edge retention
hot-work steel
vshigh-speed steel
  • Specialized
6.5

A type of metal that stays hard at high temperatures used to make cutting tools like drills

is the same heat resistant alloy used mainly for metalworking cutting tools

How Hard

carbide
  • Specialized
8 7.5
high-speed steel
  • Specialized
1 5.3
tool steel
  • Specialized
1 5.5
carbon steel
  • Specialized
2 3.5
mild steel
  • Specialized
3.7

Surface Forms

Morphology

high-speed + steel

The phrase is compositionally built from 'high-speed' (fast/used at high speeds) + 'steel' (the metal), so a B1 learner who knows the constituents will infer it denotes a kind of steel related to high-speed use (e.g. for drills). However, the precise technical sense — that it retains hardness at high temperatures and is specifically used for cutting tools — is specialized and not fully predictable from the words alone, so the expression is only partially transparent.

Etymology

High-speed steel comes from the idea of cutting at high speed: when tools cut very fast they get hot and normal steel becomes soft. This special steel stays hard even when it gets hot, so the name points to 'fast cutting' and explains why it is used for cutting tools.