Milwaukee Thunderbolt Black Oxide Drill Bit Set 15-Piece HSS 135° Split Point Parabolic Flute 1/16–3/8 In for Plastic Steel & Wood with PACKOUT Case

Drill Cleaner, Faster, More Accurately – Milwaukee Thunderbolt 15-Piece Black Oxide Drill Bit Set, HSS, 135° Split Point & Parabolic Flute with PACKOUT Case

Take on drilling in plastic, steel, and wood with consistent precision using the Milwaukee Thunderbolt 15-Piece Black Oxide Drill Bit Set—high-speed steel jobber-length bits engineered with a 135° split point tip, parabolic flute geometry, and 3-Flat Secure-Grip™ shank for professional-grade drilling performance in a comprehensive fractional inch size range from 1/16 in to 3/8 in. The 135° split point tip starts drilling on contact without walking, delivering accurate hole placement every time. The parabolic flute design rapidly evacuates chips from the cutting zone—keeping the bit cool and the hole clean at high drilling speeds. Stored in a Milwaukee PACKOUT™-compatible case for organized, protected jobsite storage.

Why Contractors & DIYers Choose the Milwaukee Thunderbolt Drill Bit Set

• 🎯 135° Split Point Tip – No Walking, Precision Start – The 135° split point geometry engages the material surface immediately on contact without requiring a center punch—delivers a precise, accurate hole start and eliminates the bit-walking across the material surface that flat-point and standard-angle bits require on harder materials
• 🌪️ Parabolic Flute Design – Faster Chip Evacuation – The specially designed parabolic flute form moves chips out of the cutting zone faster than standard flute geometries—reducing heat buildup, preventing chip packing, and maintaining sharp cutting performance throughout the full depth of the hole in all three primary materials: plastic, steel, and wood
• 🔐 3-Flat Secure-Grip™ Shank – No Slipping – Three flats machined into the shank grip firmly in the drill chuck and eliminate bit slippage during high-torque drilling operations—a critical feature when drilling through harder materials like steel where bit slippage causes inaccurate holes and premature bit wear
• 🛡️ Black Oxide Finish – Lubricity & Corrosion Resistance – Black oxide finish reduces friction between the bit and material during cutting, provides mild corrosion resistance for jobsite storage conditions, and extends overall bit service life compared to uncoated HSS bits
• 📦 15-Piece Fractional Set – Full Size Coverage in PACKOUT Case – 15 fractional inch sizes from 1/16 in to 3/8 in cover the full range of standard drilling needs for plastic, steel, and wood applications. Stored in Milwaukee’s PACKOUT™-compatible case for organized, stackable jobsite storage that protects bits and keeps sizes instantly accessible

Complete Size Chart – All 15 Drill Bit Sizes Included

Product Specifications

Frequently Asked Questions

Q: Can these bits drill through metal/steel?
A: Yes. The Milwaukee Thunderbolt black oxide HSS bits are rated for drilling in steel as a primary material application. For best results in steel, use cutting fluid or oil to reduce heat buildup, drill at appropriate lower RPM for larger sizes, and apply steady consistent feed pressure.

Q: Are these impact-rated for use with impact drivers?
A: No. These are standard jobber-length drill bits with a 3-flat shank designed for use in standard drill chucks—they are not impact-rated for use with impact drivers. Use Milwaukee Shockwave impact-rated bits for impact driver applications.

Q: Does this set include a storage case?
A: Yes. The set comes in a Milwaukee PACKOUT™-compatible case that keeps all 15 bits organized, protected, and ready for use. The PACKOUT system is Milwaukee’s modular jobsite storage platform.

Fast US Shipping

Ships from our US warehouse — enjoy free delivery in 2–7 business days to your door. Drill smarter with Milwaukee Thunderbolt!