Meet the Milwaukee 1-3/8 in. x 6 in. L Heat-Treated Steel Self-Feed Drill Bit Hex Shank — a purpose-built solution for fast, accurate large-diameter holes in wood and wood composites. Designed to endure demanding work, this bit combines a robust cutting edge with a self-feed mechanism that drives the bit forward as you drill, helping you finish projects faster with less effort.
- pulls the bit through the material, reducing manual feeding and producing cleaner, more consistent holes.
- construction provides long life and dependable performance under frequent drilling sessions.
- helps minimize friction and wear, extending bit life even in busy job-site conditions.
- delivers a secure, slip-free grip in hex chucks and impact drivers, improving control in high-torque drilling.
- with a 1-3/8 in cutting diameter and a 3/4 in flute length for deep, through-the-lumber holes with steady walls.
- offers secure storage and easy maneuvering in your tool kit.
Who benefits most: professional carpenters, electricians, framers, and serious DIYers who routinely need large-diameter holes without sacrificing wall integrity or working speed. Ideal for routing electrical conduits, plumbing passes, or wires through studs, cabinetry, or fence posts where depth and precision matter.
Why this Milwaukee bit stands out in a crowded field is the combination of self-feed capability, durable heat-treated steel, and a secure hex shank that minimizes slippage under load. The result is deeper, cleaner holes with fewer passes, enabling you to tackle bigger projects with confidence.
Practical tips for best results:
- Clamp your workpiece securely and use a backing block to minimize tear-out on the exit side.
- Keep the drill at a steady, moderate speed and let the self-feed tip do the work—don’t force the bit.
- Periodically back the bit out to clear chips and prevent heat buildup for longer bit life.
- Use the 7/16 in hex shank with a compatible drill or impact driver to maximize grip and control during heavy cuts.
Specifications at a glance:
- Drill size: 1-3/8 in
- Overall length: 6 in
- Flute length: 3/4 in
- Shank type: Hex Shank
- Shank diameter: 7/16 in
- Material: Heat-treated steel
- Finish: Coated
- Packaging: Clamshell (1 piece)
Choose the Milwaukee 1-3/8 in. x 6 in. Self-Feed Drill Bit HEX Shank when you need dependable, deep holes with minimal effort. It’s the practical, durable option for demanding wood drilling tasks and professional-grade results.