Meet the Diablo DMAPLCC1120 4-3/8" SDS-Plus Carbide Tipped Thin Wall Core Bit—built for serious concrete jobs where speed, longevity, and precision matter. This core bit is engineered to deliver fast, clean cores with less resistance, so you can work smarter, not harder, from first hole to last.

• Thin-Wall Precision design minimizes wall thickness without sacrificing strength, delivering quicker hole completion and reduced bit runout in tough concrete—perfect for tight spaces and overhead drilling.
• Carbide-Tipped Tips undergo a specialized brazing and hardening process, extending tip life and boosting material removal rates so you drill longer between changes.
• Two Ejector Holes facilitate easy core removal when needed, reducing downtime and keeping your workflow uninterrupted in demanding jobsites.
• SDS-Plus Compatibility optimized for both corded and cordless SDS-Plus rotary hammers, ensuring reliable performance whether you’re on a corded power pack or a battery-powered drill.

This 4-3/8" core bit is ideal for applications that require deep, clean cores in concrete, including anchor installations, conduit or pipe routing, and electrical or plumbing runs through solid masonry. The carbide-tipped edge preserves cutting integrity through rebar-containing concrete and other challenging mixes, so you won’t be stopping to sharpen or switch bits mid-project.

Why choose this core bit?

• thanks to the thin-wall profile and optimized brazing/hardening that maximize metal removal while minimizing heat buildup.
• through durable carbide tips designed to resist wear in tough aggregate and reinforced concrete.
• with two ejector holes that simplify core extraction in tight or awkward angles.
• across both corded and cordless SDS-Plus hammers, so your investment adapts to your power source.

Practical tips for best results

Keep drilling cool by letting the tool do the work with steady, perpendicular passes; avoid aggressive side loading which can cause bit wobble. Periodically withdraw the bit to clear dust and debris, and inspect the carbide tips for wear—when you notice a drop in cutting efficiency, it’s time for a replacement to maintain clean cores and predictable hole dimensions.

Who this is for

Professionals and tradespeople drilling concrete in construction, electrical, plumbing, or masonry projects will appreciate the combination of speed, durability, and ease of use offered by the Diablo DMAPLCC1120. If you need reliable core drilling that minimizes downtime and maximizes throughput in both corded and cordless environments, this is the core bit to keep on hand.