10 Best Mortise Attachments For Drill Presses 2026 in the United States

The SaferCCTV 7-piece mortise chisel set offers a solid choice for woodworking projects requiring precise square holes. It includes a wide range of chisel sizes from 1/4 inch to 3/4 inch, covering most common mortising needs. Made from hardened bearing steel with a hardness rating of 56 HRC, these chisels are sharp and built to last, helping you cut clean and fast with less effort.

These bits are specially designed for square hole mortising machines only and cannot be used with regular electric or bench drills, so compatibility is limited to specific mortising setups. Installation is straightforward since they match standard square shanks, but because they are specialized tools, some familiarity with mortising machines is helpful. The build quality is good, featuring stainless steel and a continuous cutting edge that maintains sharpness. Adjustability isn't a feature here; you select the chisel size you need instead.

Thanks to the variety of sizes, you can pick the right bit for your project easily, although the set does not include any adaptors for different machines. The manufacturer also provides a 14-month warranty and professional support, which is a nice plus if you need guidance or replacement parts. While this set may not be suitable for casual drill users, it serves as a cost-effective and efficient solution for woodworkers with mortising machines aiming for accurate square holes.

The General Tools Mortise and Tenon Jig is designed to help woodworkers create strong, accurate mortise and tenon joints, which are essential for durable furniture and woodworking projects. It comes with adjustable clamps and swing arms that make it easier to align and secure the wood, improving the precision of your cuts. The included 1/4" high-speed up-cut spiral bit and a set of bushing guides for different tenon sizes (1/4", 3/8", and 1/2") provide flexibility for various projects. The jig can be mounted on a workbench or clamped in a vise, giving you options depending on your workspace setup.

Build quality leans toward plastic components, which keeps the unit lightweight but might not be as durable as metal alternatives. Installation and setup are generally straightforward, thanks to the included centering tool and adjustment wrench, though some users might find the plastic parts less sturdy during heavy use. The jig is designed for use with plunge routers, making it best suited for those who have or plan to use a router rather than a drill press.

With a 3.9-star rating from over 500 reviewers, it satisfies many hobbyists and DIYers looking for an affordable, easy-to-use solution. This jig is a practical choice for casual woodworkers wanting to improve their joint-making with decent accuracy and flexibility, but professionals or those needing heavy-duty attachments might prefer more robust options. Its adjustability suits beginners and intermediate woodworkers, while the plastic build may limit long-term durability.

This mortising attachment by BMTURNING is designed to convert a standard drill press into a functional mortising machine, allowing you to add mortising capability without purchasing a dedicated mortiser. It includes four chisel sizes (1/4", 3/8", 1/2", and 5/8"), covering a useful range for many woodworking projects. The drill bits are made of high-quality steel and are designed to cut quickly without clogging from sawdust, which helps maintain smooth operation.

Compatibility requires attention: the drill press collar diameter should be around 65mm but can be adjusted with reducer rings to fit smaller sizes, and the vertical space between the chuck and workbench must be at least 15.7 inches. Checking your machine carefully before buying is important. Installation is straightforward but requires proper measurement of your drill press. The set includes a locator, press block, side positioning rod, and fixed seat, which assist with positioning and stability during use.

The build quality is solid with iron parts and spiral flutes, though the tools are uncoated, which may affect long-term durability and rust resistance unless maintained properly. The included sturdy plastic case is convenient for storage and transport. The attachment offers decent adjustability, allowing precise alignment for square or circular mortises, adding versatility to your woodworking tasks. This product provides a cost-effective method to add mortising capabilities to a compatible drill press, with a good range of chisel sizes and useful accessories; just ensure your drill press meets the size requirements and plan for careful installation and maintenance.