5PCS Spiral Flute Titanium HSS Step Drill Bit Set for Metal Unibit
$24.99
5-Piece Titanium HSS Step Drill Bit Set
Drill and enlarge holes in plastic, aluminum, iron, and sheet metal with five spiral-flute step bits covering 50 sizes. Titanium-coated HSS and 118-degree split points support controlled, efficient cutting.
- Five bits with 50 total sizes.
- Spiral dual-flute chip-clearing design.
- 118-degree split-point tips.
- Suitable for many thin materials.
- Includes an organized storage case.
Description
5-Piece Spiral Flute Titanium HSS Step Drill Bit Set
This 5-piece step drill bit set is designed for creating clean holes in plastic, aluminum, iron, and many types of sheet metal. Each bit combines high-speed steel construction with a titanium coating for sharp cutting performance and improved wear resistance. With five bits covering 50 total sizes, the set offers a practical range for DIY projects, workshop repairs, electrical work, and general metal fabrication.
Wide Size Coverage for Versatile Projects
The five-piece collection provides multiple stepped diameters in one organized kit, reducing the need to carry many individual drill bits. Step drilling is useful when a project requires enlarging an existing hole or creating different hole sizes in thin materials. Select the step closest to the required diameter and work gradually for better control.
Mark the drilling point before starting and secure the workpiece firmly. Use cutting lubricant when appropriate for the material, clear chips regularly, and avoid applying excessive pressure. The bit should do the cutting while the tool remains stable.
Spiral Flute and Split-Point Design
The 118-degree split-point tip helps the bit start more accurately and reduces walking on the surface. The spiral dual-flute design supports faster cutting and helps move chips away from the hole, keeping the cutting area clearer during operation. These features can make hole enlargement smoother in suitable sheet materials.
Use a controlled speed that matches the material and bit diameter. Do not force the bit through thick or hardened metal. The set is not recommended for stainless steel or other harder metals unless the manufacturer specifically confirms compatibility.
Organized Storage and Safe Handling
The included storage case helps keep all five step bits together, protected, and easy to identify. Organized storage also reduces the chance of losing smaller accessories between projects. After use, remove debris, wipe the bits dry, and return them to the correct slots.
Wear safety glasses and suitable protective equipment during drilling. Keep loose clothing and hands away from rotating parts, and disconnect power before changing bits. Inspect the cutting edges regularly and replace any bit that is cracked, damaged, or excessively worn.
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