3-13mm Metric Size M35 Cobalt High Speed Steel 6.35mm Hex Shank HSS Step Drill Bit Cutting Tool for DIY Plastic Wood Metal

Efficient drilling: Precise, smooth holes are easily created. The double-fluted helical splines allow for good chip evacuation, reduce clogging, and increase drilling speed. Perfect for DIYers and professionals.
Material: These drill bits are made of M35 cobalt high-speed steel, which has excellent hardness, wear resistance, and heat resistance. Provides a long service life and good performance even in demanding applications.
Compatibility: This bit set includes a 6.35mm hex shank for easy attachment to a variety of power tools and impact drivers. Enjoy drilling into plastic, wood, metal, and other materials, expanding the possibilities of your project.
Hole Sizes: The kit includes a variety of sizes from 3mm to 13mm, allowing you to create a range of hole sizes with precision and ease.
Convenient and Portable: These step drill bits weigh only 23 grams, making them lightweight and compact, easy to carry and store. Take them with you wherever you go for drilling tasks, saving time and effort.