Four Spiral Flute Step Drill Bit Set, 5 Pcs HSS Step Drill Bits (1/8"-1-3/8") Un

Description: ENHANCED DURABILITY: Our industrial-grade step drill set is meticulously crafted from high-quality alloy steel and undergoes multiple manufacturing processes. Each drill bit is carefully inspected at the factory to ensure superior quality and longevity.IMPROVED STABILITY: Unlike ordinary step drills that often suffer from deflection during cutting, our four-flute step drill bit provides exceptional stability. This feature enhances accuracy and cutting speed, making it perfect for stainless steel drilling. In fact, it offers a significantly longer service life compared to regular step drills.5PCS NITRIDING STEP BIT KIT: Our 5-piece nitriding step bits set includes a range of sizes to cater to various drilling needs. The set comprises step bits with diameters of 3/16"-1/2" (6 steps), 1/8"-1/2" (13 steps), 1/4"-3/4" (9 steps), 3/16"-7/8" (12 steps), and 3/16"-1-3/8" (19 steps). All these bits come in a sturdy blow molded case for easy storage and transport.VERSATILE DRILLING CAPABILITY: With its powerful drilling capability, our step drill is suitable for piercing holes in various materials, including thin metal, copper, aluminum, iron, carbon steel, wood, and plastic. It's an essential addition to any DIY enthusiast's toolbox and can be utilized for a wide range of household projects.USER-FRIENDLY DESIGN: Our step drill bits feature laser-engraved step sizes, ensuring clear visibility and eliminating concerns about wear and tear during use. This design element enhances convenience and accuracy, making the drilling process easier and more efficient.DEDICATED CUSTOMER SERVICE: While our products undergo stringent quality inspections, unforeseen issues caused by accidental factors may occur. In such cases, we are committed to providing professional customer service. If you encounter any quality problems, please contact us via Amazon, and we will promptly replace the defective item with a new one. Product Description PRODUCTION PROCESS OF OUR STEP DRILL 1.Material Selection: The first step is to select a material suitable for the step drill. Using High Speed Steel (HSS) 2.Blank preparation: The selected material is obtained in the form of a blank, which is a cylindrical rod with a larger diameter than the final stepped drill bit. Blanks are usually obtained by processes such as forging, extrusion or bar. 3.Grinding and Shaping: The blank is then machined using a grinding operation to obtain the desired shape for the step drill. This involves using a precision grinder to remove excess material and form the flutes, steps and cutting edges of the drill. 4.Heat Treatment and Nitriding: Partially formed step bits are heat treated to increase hardness, strength and durability. The specific heat treatment process can vary depending on the materials used. 5.Finishing operations: After heat treatment and nitriding, step drills undergo final grinding and polishing operations to obtain precise dimensions, smooth surfaces and sharp cutting edges. This ensures the precision and performance of the drill. 6.Quality Control: Throughout the manufacturing process, quality control measures are implemented to ensure that stepped bits meet specified standards and tolerances. This may involve dimensional inspection, hardness testing and visual inspection. Quantity 3Pcs 5Pcs 10Pcs Material Nitrided High Speed Steel Nitrided High Speed Steel Nitrided High Speed Steel Applicable to Metal, plastic, wood, etc. Metal, plastic, wood, etc. Metal, plastic, wood, etc. Tool Box ✓ ✓ ✓ Feature Drilling, Opening Drilling, Opening Drilling, Opening

Price: 45.99 USD

Location: Denver, Colorado

End Time: 2024-08-22T10:24:59.000Z

Shipping Cost: 0 USD