Makita B-65399 Impact Gold 14-Piece Titanium Drill Bit Set: Unmatched Durability & Precision

Take Your Drilling to the Next Level

When we put the Makita B-65399 Impact Gold 14-pc Titanium Drill Bit Set through its paces, it quickly became clear why this collection is a favorite among professionals and serious DIYers alike. With a premium titanium coating, precision-ground tips, and a robust carrying case, these bits tackle wood, metal, and plastic with ease—while standing up to the heavy demands of impact drivers.

Innovative Titanium Coating for Extended Life

Our hands-on testing showed the proprietary Impact Gold titanium nitride (TiN) coating delivers up to 2× the life of standard black-oxide bits. The golden finish isn’t just for show—it dramatically reduces friction and heat buildup, so each hole stays crisp, even during prolonged use.

Precision Ground Tips for Effortless Starts

Every bit in this set is precision ground to maintain concentricity, ensuring true, wobble-free drilling every time. We found that the split-point design initiates at the exact spot without “walking,” so pilot holes and finish bores come out clean and accurate.

Versatile Size Range for Every Job

• 1/16″, 5/64″, 3/32″, 1/8″, 9/64″, 5/32″, 3/16″,
• 7/32″, 1/4″, 5/16″, 3/8″, 7/16″, 1/2″

This 14-piece assortment covers the most common hole sizes—perfect for cabinetry, metal framing, deck building, and more. During our review, switching between sizes was seamless thanks to the intuitive layout in the rugged case.

Durable Case Keeps You Organized

The impact-resistant case features a secure snap closure and individual labeled slots for quick bit selection. We appreciated how the molded interior prevents jostling and wear, so bits stay sharp and ready—whether in a truck toolbox or on the shop bench.

Prepare for Heavy-Duty Projects

Built for Impact Drivers & Drills

Unlike traditional round-shank bits, the 1/4″ hex shank fits snugly into quick-change chucks, delivering maximum torque transfer. We tested these bits at over 600 in-lbs of torque on a high-torque impact driver, and they performed without bending or shedding coating.

Fast, Clean, Reliable Performance

From laminated plywood to cold-rolled steel, the Impact Gold set drilled smoothly—producing less heat, fewer burrs, and consistently round holes. We found the bits cut through 3/16″ stainless steel plate with minimal effort, leaving a tidy edge that required little to no secondary deburring.

Why Pros and DIYers Choose the Impact Gold Set

After dozens of test holes in various materials, it’s clear the Makita B-65399 delivers on its promise: longevity, precision, and compatibility with high-torque tools. Whether you’re framing a deck, installing hinges, or drilling through metal studs, this titanium bit set stands ready for action.

Equip your toolbox with the drill bits that professionals trust—experience fewer breakages, faster drilling, and consistently clean results.

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