[Top Quality]Our Wood Auger Bit is made of top 1045 high Carbon Steel,it has been specially hardened to ensure 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. [6 Sizes for Your Various Needs]Drilling diameter: 1/4", 3/8", 1/2", 5/8", 3/4" and 7/8" Inch,Total length: 12"Inch,Hex Shank: 1/4" & 2/5"Inch.Perfect for drilling into soft and hard wood. [Unique Self-Positioning Design]The Self Feeding Coarse screw point of auger bits can help the drill bit be accurately and quickly positioned on the wood for easy drilling. [High Effieiect & Smooth Holes]Our woodworking hex shank drill bit is designed with a single-tooth cutting edge, which cuts the edge first and then drills, making drilling more efficient;The extra-large chip flute design makes chip removal faster and smooth holes can be obtained easily. [Wide Range of Use]Self-Positioning point tip provides accurate positioning Suitable for drilling into both soft and hard woods, MDF, plywood, lumber, landscape timber, and for installing PVC pipes or boring tree stumps(not for metal). Color: Silver Material: Steel Package Contents: 6Pcs Auger Drill Bit Set 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. 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.