Choose from our selection of deep hole drill bits, including extended-length drill bits, chip-clearing cobalt steel drill bits, and more. Same and Next Day Delivery.

These spiral-flute deep hole carbide drills possess an advanced flute geometry designed for optimal chip evacuation from deep holes in a wide range of materials. To provide the cutting edge with an optimum coolant supply, the tools possess a maximized coolant duct profile.

KenDrill™ Kennametal HP solid carbide deep hole drills are designed for machining success. For steel, cast iron, stainless steel, high-temp alloys, and more.

You can count on Drill Bit Warehouse for high-quality drill bits, drill bit sets, cutters, and more. Need help? Call us at (800) 350-8665 for support.

Kennametal offers a wide range of HTS deep-hole drilling tooling for your applications. Choose Inserts, cartridges, components, toolholders, and more.

Drill deep holes and access tight spaces with our extra-long drill bits. Ideal for construction, electrical, and plumbing work.

Drill up to 20x diameter in depth with this fully stocked Harvey Tool offering of High Performance Drills - Deep Hole - Coolant-Through, offered in 12x and 20x flute length options. Its coolant through design improves chip removal in deep holes.

The new KenDrill Deep HPR significantly improves on our existing range of solid carbide deep hole drilling tools with its steel and and iron capabilities. A material-specific deep hole drill, KenDrill Deep HPR is in stock and available in an extensive range of lengths and diameters.

Each of these solid drill bits has a fluted head that grinds through concrete and masonry without creating a plug of material that needs to be cleared from the drill bit. This allows these bits to create deeper holes and drill continuously for longer than would be possible with a core bit.

Star Cutter Solid Carbide Custom Deep Hole Twist Drills feature sculptured flute geometry and are polished beyond the cutting area flutes resulting in superior chip control and enhanced chip evacuation.