3 Piece Step Drill Bit Set - 4-12mm, 4-20mm, 4-32mm

3 Piece Step Drill Bit Set - 4-12mm, 4-20mm, 4-32mm. This set gives you three stepped drill bits for clean, controlled drilling across a wide range of common tasks. Each bit is marked with clear size steps so you can move through hole diameters gradually instead of switching between many separate bits. That makes it a practical choice for workshop use, home repairs, and general fabrication where accuracy and speed matter.

The bits are finished in a gold tone and designed in a tapered step shape that helps keep the cutting path tidy as you enlarge holes in sheet material. The smallest bit covers 4 to 12 mm, the medium bit covers 4 to 20 mm, and the largest bit covers 4 to 32 mm, giving you three useful ranges in one compact set. The set is especially handy when working on wood, plastic, or metal surfaces that need progressive hole sizing rather than one large drill action.

Practical value. Instead of carrying several standard bits, this set keeps the most common stepped sizes together for quicker job changes. The visible size markings on each bit make selection straightforward, while the graduated design helps reduce repeated bit changes during drilling tasks. For buyers who want a simple, multi-size drilling solution, this is a compact and efficient option.

• Versatile size coverage: Three bits cover 4-12 mm, 4-20 mm, and 4-32 mm so you can choose the right range for the task.
• Clean step drilling: The stepped cone shape helps enlarge holes gradually, which is useful when working on thin materials and when you want better control over the opening size.
• Easy size identification: Each bit has printed measurement marks, making it easier to pick the correct step at a glance.
• Useful for everyday workshop jobs: Suitable for wood, plastic, and metal applications where stepped drilling is preferred over standard single-size bits.
• Home users: Great for basic repair and installation jobs that need multiple hole sizes.
• Workshop users: Handy for fabrication, fitting, and general maintenance tasks.
• DIY buyers: A compact set for people who want flexible drilling options without a large bit collection.