THINKWORK 5Pcs HSS Step Drill Bit, 4 Spiral Flute Unibit for Metal-59 Steps
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- 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 , and we will promptly replace the defective item with a new one.
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Select a product to estimate shipping.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.
Product details
| Main Specification | |
|---|---|
| Surface Recommendation | Wood or Metal or Plastic |
| Manufacturer | Thinkwork |
| Unit Count | 1 Count |
| Item dimensions L x W x H | 6 X 1.5 X 4 Inches |
| Cutting Diameter | 1.38 Inches |
| Point Style | Step Point |
| Shank Type | Straight |
| Tool Flute Type | Spiral |
| Brand | Thinkwork |
| Included Components | step drill 5pcs |
| Number of Pieces | 1 |
| Material | High Carbon Steel |
| Finish Type | Black Oxide |
| Product information | |
| Set Name | 5-Piece Nitriding Step Bit Kit |
| Technical Details | |
| Part Number | W6139-Step Drill Bit Set |
| Model | W6139-HSS Step Drill Bits |
| Material Type | High Carbon Steel |
| Number of Flutes | 4 |
| Measurements | |
| Item Dimensions | 6 x 1.5 x 4 inches |
| Others | |
| Item Highlight | Storage Case or TiN Coating or Precise Scale Marks or Smooth Drilling or Long Lifespan or 1/4" +3/8"Shank or (1/8"-1-3/8")Various Sizes |
| Product Type | Step Drill Bits |
| Minimum Bore Diameter | 4.76 millimeters |