If you only cut softwoods and are happy with the variety of sizes Milwaukee offers, this set is a good buy. When you're cutting hardwood, MDF, OSB, Hardie board, fiberglass, plaster, drywall, and other hard and abrasive building materials, Blue Boar's carbide cutters perform much better and last longer. BLUE BOAR TSF12 Set of 12 Heavy Duty Carbide Bits - 2-1/4" depth of cut. Cut 10 times faster and use 1/40 battery power. Cordless drills cut three times larger holes than bi-metal drills. Deep side flutes for quick removal of plugs Milwaukee was the first company in the US to make a cutter with large side slots and multiple teeth - a vast improvement over the Lenox single-flute cutters, but still with high-speed steel cutting teeth This type of hole saw makes removing the dowel very easy and much quicker than a bi-metal hole saw so is much easier to take off.The carrying case is well designed and keeps the hole cutter, reaming rod and pilot drill in place.large so no more than Fits 8 sizes, 4-1/4" or smaller. Milwaukee is designed for wood use only and only supplies flat wood drill bits with the kit. Hole cutters use a standard 5/8-18 thread mount, allowing other hole saws to be mixed with the Milwaukee kit, including Blue Boar's TCT tungsten carbide carbide bits. Useful when you need more than the 8 sizes offered by Milwaukee which are quite limited. For example, the smallest Big Hawg hole saw size is 2-1/8" and in the 3-4" size range there are only 3" and 3-5/8" sizes. BLUE BOAR 1-1/8" (29mm) TCT 2-Tungsten Carbide Multipurpose Auto Feed Drill 1/4" outperforms auto feed drills and bi-metal hole saws. Cutting Wood, MDF, OSB, Laminate, Carbide, Particleboard, Gypsum, Drywall, Brick, Formics Blue Boar Hole Saw Kits Includes Carbide Chisels for Masonry, Tile Shovels and Spiral Chisels, as well as Flat Wood Chisels, making them great for those cutting anything other than softwood want to cut are the wiser choice.