V VONTOX Step Drill Bit Set, 6 Pcs Titanium High Speed Steel Unibit Step Drill Bit for Metal/Wood/Plastic, Total 50 Sizes with Automatic Center Punch & Aluminum Case for DIY Lovers and Home Use

Key features

• ✨【HSS Titanium Coating】Step drill bit coated by titanium nitride ensures maximum durability and sharpness, reduces the friction and provides longer operation life.
• ✨【118° Split Point & Double-Edged Straight Flute】The step drill bit set include precisely ground 118° X-shaped drill enables fast and even drilling progress, and the heat-treated double-edged straight flutes ensure optimal chip removal.
• ✨【Wide Application】The step drill bits can be used on common materials such as metal heavy duty, iron, aluminum, brass, plastic, aluminum alloy, wood, plastic, etc. It saves time and money and is perfect for home DIY and general construction/engineering purposes. (Please note: it cannot be used on steel and stainless steel!)
• ✨【50 Sizes In Total】This step bit drill bit set covers all common sizes in life and can replace 50 single drill bits(include common 3/4, 5/8, 1/2, 7/8, 1/4, etc.), you can finish drilling, reaming and deburring in one step without changing drill bits.
• ✨【Aluminum Box Packaging】Aluminum outer box for stepped drill bit is more sturdy, easier to carry and store. Whether it's for your family, father, boyfriend, it's a very meaningful choice!
• 🎁【Automatic Center Punch】We also offer a free automatic center punch worth $10. Marking with it before drilling can effectively prevent drill slippage and is ideal for use with stepper bit.
• 💯【Professional After-Sales Service】You will get a lifetime warranty and 24-hour customer service, if you have any dissatisfaction with the step drill bits, please contact us and we will do our best to give you a satisfactory answer!