[Top Quality]Our Bit is made of Steel,it has been specially hardened to its durability and long service life.Note: To achieve the best drilling results, please use high-power drill, corded power drill or bench drill for drilling operations. [Size]Drilling diameter: 1-1/2 Inch,Total length: 12Inch,Hex Shank: 7/16Inch.Perfect for drilling into soft and hard wood. [Unique Self-Positioning Design]The Self Feeding Coarse screw point of bits can help the drill bit be accurately and quickly positioned on the wood for easy drilling. [Hexagonal Shank Design]Hex shank fits into all power tools more easily and securely, specially for locking into quick change chuck. [Self-aligned Thread ]The self-directed thread of bits can help the drill bit be accurately and quickly positioned on the wood for easy drilling. Flat hole wall after drilling and smooth discharge of chips. [ Wood Drill Bit Set]Perfect for drilling into soft and hardwood, MDF, Plywood, Lumber, Railroad Ties, Landscape Timber, Invisible Floating Shelf Bracket,Tree Stump, Plastic and Aluminum Alloy Material, creates deep and clean holes quickly. The product appearance slightly from batch to batch, but it does not affect the use Colour:Silver Material:steel Package Contents: 1 x Augers Bit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.