9pc 1/4″-3/4″ HSS Spiral Step Drill Bit for Aluminum, Metal, Plastic, Wood

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9pc 1/4″-3/4″ HSS Spiral Step Drill Bit for Aluminum, Metal, Plastic, Wood  Technical Specifications
Material Type High Speed Steel (HSS)
Finish Types Titanium Nitride
Shank Type Straight
Surface Recommendation Metal, Plastic, Stainless Steel, Wood
Features & Specs
Cutting Angle String 118 Degrees
Tool Flute Type Spiral
Point Style Step Point
Number of Flutes 4

ENHANCED DURABILITY: Our industrial-grade step drill 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. 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. In fact, it offers a significantly longer service life compared to regular step drills. speed, making it perfect for stainless steel drilling. In fact, it offers a significantly longer service life compared to regular step drills.
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. customer service. If you encounter any quality problems, please contact us via email, and we will promptly replace the defective item with a new one.

Designed for electricians, plumbers, and HVAC contractors, these bits feature an innovative Split Point Tip for fast, accurate starts and up to 6X longer life, while an automated precision grinding process ensures 2X faster cuts with minimal wear. With laser-etched step markings for multiple hole sizes, increased step heights for efficiency, and a ¼” hex shank for compatibility with drills and impact drivers, FLINTOOLS’s Step Drill Bits deliver unmatched performance in thin metals, PVC, and other plastics!   13 Sizes HSS M35 Cobalt Step Bit 1/8″ to 1/2″ Four Spiral Flute Step Point Drill Bit

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. 19 Sizes M35 HSS Cobalt TiAlN Tri-Flat Shank Step Drill Bit 3/16″ to 1-3/8″