ZELCAN 5PCS Step Drill Bit Set Bundle with Large HSS Spiral Groove Step Drill Bit

Our 5-piece step bit set offers a comprehensive solution to your drilling needs, featuring diameters ranging from 1/8" to 1-3/8". Crafted from durable high speed steel with a titanium coating, our drill bits ensure superior hardness for faster cutting and long lasting performance, even in high temperature and high pressure environments. Plus, with their 1/4" hex shank and quick release slot, changing drill bits has never been easier. Experience enhanced drilling efficiency and reduced chip clogging with our four spiral flute design, making ZELCAN's step drill bits for metal the ultimate tool for all your drilling projects.

• Bundle Include: A - 50 Sizes comprehensive drill bit set caters to diverse drilling needs, with diameters ranging from 3/16" to 1/2" (6 steps), 1/8" to 1/2" (13 steps), 1/4" to 3/4" (9 steps), 3/16" to 7/8" (12 steps), and 1/4" to 1-3/8" (10 steps).
• Quick Release & Tapered Edge Design: The 1/4" hex shank and quick-release slot ensure secure connections and easy changes. The four-spiral flute design effectively evacuates chips from the hole, reducing the likelihood of clogging and improving drilling efficiency.
• Bundle Include: B - The bit comes with 12 hole sizes: 6mm, 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm, 60mm. , saving you time and efforts to change bits, quadrupling your drilling efficiency compared to competition.
• Durable Titanium Coated Bits ----- The step drill bit is made from upgraded high speed steel characterized by well-balanced toughness, wear resistance and red hardness properties for better and faster hole -drilling performance. The titanium coating makes the drill bit more durable so that it can last for years with uncompromised quality.
• Smooth & Clean Drilling: Designed with four-spiral flute, out step bit enables faster cutting and drilling compared to dual or single flute bits. It also efficiently clears away chips for smooth performance.