Klein Tools QRST11 Step Drill Bit – Dual Spiral Flutes, Quick Release Hex Shank, 7/8–1-1/8 in, For Steel, Wood, Plastic, Aluminum

Overview

Meet the Klein Tools QRST11 Step Drill Bit, engineered for smooth, controlled drilling across metal, wood, plastic, and aluminum. The dual spiral flutes are designed to pull the bit through the material, reducing resistance and enabling faster, cleaner cuts. An aluminum-titanium nitride coating provides notable durability, helping extend the bit’s lifespan in demanding jobsite conditions. The 1/4-inch hex shank is compatible with impact drivers and standard drills, delivering a secure grip and convenient usage that professionals value.

Two hole sizes are clearly marked with laser markings for quick identification, so you can switch between sizes with confidence on busy projects. This bit is designed to resist walking at start, thanks to a fast-starting tip that helps you begin cuts accurately. The QRST11 is suitable for a range of materials, including steel (up to 16 gauge), wood, plastic, and aluminum, making it a versatile addition to any toolset.

Key Benefits

• Durable coating: Aluminum-titanium nitride coating offers long life, with durability cited as significantly higher than traditional black oxide
• Impact rated: Works with torque from impact drivers and standard drills
• Faster cuts: Dual spiral flutes promote efficient chip removal and quicker drilling
• Clear size identification: Laser-marked hole sizes simplify setup and reduce guessing
• Precise starts: Fast-starting tip helps prevent wandering and improves hole alignment
• Secure grip: 1/4-inch hex shank with quick-release keeps the bit firmly engaged

Material Compatibility

• Steel up to 16 gauge
• Wood
• Plastic
• Aluminum

Usage Tips

• Align the drill bit with the workpiece and start at a slow speed to establish a clean pilot hole
• Use light, steady pressure and let the bit do the work to minimize heat buildup
• When switching between sizes, rely on the laser markings to confirm the correct size quickly

Designed for professionals and serious hobbyists alike, the QRST11 embodies Klein Tools’ commitment to premium materials, dependable build quality, and practical performance in real-world conditions. While results can vary with material and technique, this bit offers a robust set of features that may help you complete tasks more efficiently and with greater confidence.