Hychika 19-Piece Hole Saw Kit With Case - 3/4" To 5" Hole Saw Set For Wood, ??19Pcs Hole Saw Kit?Made of high quality heat-treated carbon steel with black oxide finish, rust and wear resistant, long life, very easy to assemble with drill bits (compatible with most brands of drill bits) for faster, cleaner cuts. ??Efficient Cutting?: Unique tooth design makes the hole more precise and smooth, carbon steel teeth provide fast and clean cutting. High precision and good impact and wear resistance. Designed with circular spiral chip removal grooves to remove chips in all directions. ??Wide Application? Hole saw set suitable for softwood, plywood, plastic board, gypsum board and thin PVC board, it can meet the difficult task of cutting multiple hole sizes from small to large for different applications such as table tops, doors and furniture. But not for metal and hardwood, perfect for home DIY. ??What You Get?Carbon steel hole saw bit includes 13 sizes of saw blades:3/4" (19mm), 7/8" (22mm), 1''(25mm),1-1/8" (29mm), 1-1/4" (32mm), 1-1/2" (38mm), 1-3/4" (44mm), 2" (51mm), 2-1/2" (64mm), 3" (76mm), 3-1/2" (89mm), 4" (102mm), 5" (127mm)maximum cutting depth of 25mm, 2 mandrels(3/8",1/4"), 1 drill bit, 1 hex key, 1 installation plate, and 1 storage box. ??Portable Storage Box? HYCHIKA drilling kit comes with a customized blow-molded tool box. Designated slots in the box hold each accessory in place. Improves work efficiency. The perfect gift for Christmas!