Baked Yellow Titanium Step Drills – 5pc Multi-Size Hole Enlarger Set for Clean, Burr-Free Cutting in Sheet Metal & Wood

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5-Piece High-Speed Steel Pagoda Step Drill Bit Set – Baked Yellow Finish, Triangular Shank DesignProfessional Multi-Size Hole Opener Kit for Metal, Wood & Plastic Key Features:Baked Yellow Surface Treatment – Enhanced hardness & corrosion resistance vs. standard HSS bits.Triangular Shank Design – Prevents bit slippage in drill chucks for safer operation.Pagoda/Step Drill Geometry – Cuts 3-32mm holes progressively with smooth edges (no burrs).High-Speed Steel (HSS) Material – Stays sharp 5x longer than carbon steel bits.5 Sizes in Set – Covers most DIY/industrial needs (includes common HVAC/plumbing sizes). Professional Applications:Metalworking – Sheet metal, aluminum, copper pipesWoodworking – Cabinet hinges, dowel holesPlastic/Fiberglass – Clean holes without crackingAuto/Electronics – Enlarging existing holes