5PCS Titanium Step Drill Bit - 4241 HSS Step Bit with Two Spiral Grooved, 50 Sizes from 3/16" to 1-3/8", Steps Bits for Metal, Aluminum, Wood & Plastic, for Electricians & DIY

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HSS step drill with Titanium Coating: High-speed steel material ensures a longer service life.This unibit step drill bit features advanced heat/corrosion/rust resistant coating, specially engineered for demanding metal drilling applications. 118° Split Point Tip & Spiral Dual-flute Design: increases cutting speed with self-centering and prevents walking, clears chips faster and allows particles to escape more easily. 50 Sizes in 5 Pcs: The step drill bit kit includes 5 standard pieces with totally 50 sizes for versatility, enough for your DIY needs. Widely Application: Ideal for drilling holes in plastic, aluminum, iron and many other types of sheet metal (Not recommended for stainless steel or any other harder metal). Two Spiral Flutes stepped drill bit: The dual-flute design ensures faster chip removal and cleaner holes. This step drill bits for metal provides smoother cutting while efficiently evacuating chips for peak drilling performance.