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The MILWAUKEE ELEC TOOL 48-89-4607 is a 5/32-inch titanium-coated drill bit engineered for use with both impact drivers and standard drills. Built around Shockwave Impact Duty technology, this bit features a variable helix design that shifts from an aggressive 35-degree angle to 15 degrees along the flute length. That geometry accelerates chip evacuation, reduces heat buildup, and helps the cutting edge stay sharp through extended use. The 135-degree split point tip engages material immediately, preventing the bit from wandering at the start of each hole. Sold in a 5-pack, these bits are a direct choice for electricians, plumbers, carpenters, and general trade contractors who drill repetitively in metal, wood, and composite materials.
This bit is suited for residential and commercial job-site applications where a mix of impact driver and drill use is common. The titanium coating and variable helix make it particularly effective when drilling through steel framing, sheet metal, hardwood, and engineered lumber. The 5-pack quantity supports tool pouches and service vans where bit attrition is a routine cost. Trade professionals who cycle through black oxide bits quickly will find the extended service life of this titanium construction reduces downtime and restocking frequency on active job sites.
Designed as an OEM-style replacement and general-use titanium drill bit compatible with standard 3-jaw drill chucks and hex-shank impact driver chucks commonly used in trade applications.
Installation is performed by any trade professional or knowledgeable user with a standard drill or impact driver. Confirm the chuck or collet is fully seated and tightened before operation. When drilling metal, use appropriate cutting fluid or lubricant where required to further reduce heat and extend bit life. Inspect the split point tip before each use and replace bits that show visible chipping or dulling to maintain hole accuracy and prevent workpiece damage.
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