Cut rounded holes in wood, plastic, PVC, and ABS with this hole saw set! The set cuts to a depth of 1 inch. Features include a black oxide finish to prevent rust and a pilot bit with a 135-degree split point for fast, skate-free penetration! With this powerful hole saw set, you'll be able to drill large diameter holes quickly and efficiently. =High-quality hole saw kit for drilling round holes easily and quickly. =Sharp and durable teeth of the hole saw ensure a powerful and high efficient action. =Hole saws in various sizes to meet different needs. =Come with arbors and a little wrench. =Can be widely used for cutting wood, thin metal plates, etc. Material: Carbon Steel Hole saw Type: 19mm / 22mm / 29mm / 32mm / 38mm / 44mm / 51mm / 54mm / 64mm Arbor Length: 4cm / 9cm Package Size: 18.5 * 9.5 * 4.5cm / 7.28 * 3.74 * 1.77in Package Weight: 420g / 14.82oz Package Variation: 1. 6pcs. Set - 4X Hole Saws - 1X Arbor - 1X Hex Key Wrench 2. 11 pcs. Set - 8XHole Saws/ - 2XArbor/ - 1X Wrench Drill Machine not included