For an extremely affordable option that still manages to contain a complete set of saws and attachments, check out the EDMBG 23097 . In addition to 12 cutters, it comes with two mandrels, a hex key, and a rugged carrying case for easy transport.
Black and Decker 71-120
The Black and Decker 71-120 comes with four of the most popular hole sizes on the market, including 1-1/4 and 2-inch. The tooth design allows for aggressive cutting at high speeds although it does struggle on most hardwoods.
Each piece in the Gorchen 521 comes with its own built-in pilot drill and mandrel, saving you lots of effort when it comes time to swap one size out for another. They can also be disassembled easily using the included Allen wrenches.
The DrillPro QKOAOKO124 includes 13 heads, all of which are compatible with many types of drill, including handheld drivers and mills. Thanks to the extra-sharp teeth, you won’t have to apply a ton of pressure to cut through mild steel.
The teeth on the Milwaukee 49-22-4105 have been ice-hardened, making them quite strong and resilient. Their deep gullets do a fine job at ejecting their own chips, which means that you won’t have to do very much manual clearing.
The Bosch HB25M includes an assortment of adapters and cutters for general purpose applications in electrical work, carpentry, plumbing, and fabrication. They are quite deep, making them especially suitable for use on thick materials.
Both casual home users and professional wood and metalworkers will appreciate the DeWalt D180005 , which features 11 saws, two quick-change mandrels, and several replacement parts, all stored neatly in a sturdy protective case.
The SnapLock Plus mandrel system on the Diablo DHS009SPC allows for rapid cup changes, so that you can get your work done faster. The tool-free plug ejection also helps you speed along without having to pry the waste material out with a screwdriver.
Klein Tools 31872
The Klein Tools 31872 includes the commonly used 7/8th, 1-1/8th, and 1-3/8th-inch cutter sizes. The center drill has a split point tip, which wanders less than standard v-points, and the ejection spring is very effective at emptying the cup of waste material.
The Greenlee 660 is available in seven- and nine-piece sets, both of which come with an arbor and a hex tool to get you started. Each saw is made from tough stainless steel and features an internal flange that prevents accidental over-drilling.