Features：Brand new and high qualityMaterial: 45# steel.Length: 115mm.Complete with 1/4" hss Pilot Drill.Exceptional strength, durability and shatter resistance.Ideal for cutting stainless, tool and mild steel sheeting plus plasterboard, wood and thin plastics.Suitable for use with hole saw sizes ranging from 32-210mm diameter.Specifications:Material: 45# steelLength: 115mmNote:1. Please allowed 1-3mm differences due to manual measurement, thank you!2. Due to the difference between different monitors, please understand that the picture may not reflect the actual color of the item.Package Includes:1 x Hole Saw Arbor (other accessories are not included)