The Milwaukee 48-20-8899 SHOCKWAVE Impact Duty Carbide Multi-Material Drill Bits kit is a 7-piece drill bit set built for users who need one case that can move from wood to metal to masonry without slowing the job down. This is a multi-material percussion drill bit set designed for drilling through mixed jobsite materials with impact drivers, drill/drivers, and hammer drill/drivers. Model Number: 48-20-8899.

What makes this set useful is not just that it drills different materials, but that it is made for the kinds of assemblies you actually run into during remodels, service work, and install work. Milwaukee calls out brick, block, concrete, steel, aluminum, ceramic tile, backer-board, wood, PVC, and drywall. If you are drilling through a finished wall, fastening over mixed substrates, or working from rough framing into masonry, this set cuts down on bit changes and keeps you moving.

The carbide tip is the working end that matters here. Milwaukee uses an aggressive multi-grind carbide tip to improve versatility and life, especially in stacked materials. The claimed benefit is up to 10x longer life in layered applications and up to 85% faster drilling in metal versus standard masonry drill bits. In plain terms, these are a better fit than a basic masonry bit when the hole goes through more than one material and you do not want the bit to get confused halfway through.

The 1/4 in. hex shank is another big reason this set earns a place in the truck. It gives you the flexibility to run the bits in an impact driver when that is the tool in your hand, while still working with standard drill/drivers and hammer drill/drivers. That kind of cross-tool compatibility matters for electricians, plumbers, maintenance techs, and remodelers who bounce between fastening and drilling all day.

Milwaukee also calls out hammer mode use for faster drilling in masonry and concrete. That is important because this is not a one-mode bit set. You can use the same set across wood, metal, and general jobsite drilling, then switch to hammer mode when the substrate turns to block or concrete. There is one limitation worth being direct about: these bits are not recommended for porcelain tile. If porcelain is part of your regular work, you will want a dedicated tile bit for that material.

The included size spread is practical for general-purpose work: 1/8 in., 5/32 in., 3/16 in., 1/4 in., 5/16 in., 3/8 in., and 1/2 in. Those are the sizes most users reach for when anchoring, running small hardware, drilling clearance holes, or stepping up through different fastener diameters. The set comes in a medium single-sided hard case designed for use in the PACKOUT storage system, which is a nice upgrade over loose sleeves and throwaway plastic organizers.

This set makes the most sense for contractors and serious DIY users who need a true general-purpose drill bit kit instead of a specialty set that only works well in one material. It is especially well suited for service work, punch list work, light anchoring, framing-to-masonry transitions, and mixed-material drilling where a standard wood bit or standard masonry bit would be the wrong answer half the time.

A smart grab-and-go set for messy real-world drilling

The Milwaukee 48-20-8899 SHOCKWAVE Impact Duty Carbide Multi-Material Drill Bits kit makes a lot of sense if your work jumps between wood, metal, and masonry and you want one set that can keep up.

• Who it's for: Contractors, service techs, installers, and serious DIY users who drill through mixed materials and do not want to carry three separate specialty sets for everyday work.
• Why it stands out: The carbide tip, impact-ready 1/4 in. hex shank, and useful size spread make this more versatile than a basic masonry bit set.
• Worth knowing: This is a true all-around jobsite set, but it is not the right pick for porcelain tile. Keep a dedicated tile bit on hand if that is part of your work.

• What materials can this set drill? Milwaukee lists brick, block, concrete, steel, aluminum, ceramic tile, backer-board, wood, PVC, and drywall.
• Can these bits be used in an impact driver? Yes. The set uses a 1/4 in. hex shank and is engineered for impacts, drill/drivers, and hammer drill/drivers.
• Should these bits be used on porcelain tile? No. Milwaukee specifically says these bits are not recommended for porcelain tile.
• Is the case compatible with PACKOUT? Yes. The included hard case is designed for use in the Milwaukee PACKOUT storage system.