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See more product details Specifications:Material: High Speed SteelSize: As shownFeatures:1.With 2 flutes, it helps to remove chips and debris on the drill bit, reducing friction and heat, so as to achieve a faster and cooler drilling process.2.The fully ground spiral groove design can quickly remove particles, reduce friction and heat, and achieve faster and cooler drilling performance. The 135° split point with straight shank prevents walking and allows precise drilling. No center punch is required.3.With a 135° separation point, it can be cut quickly by 1/4-inch quick-change hex handle. The hexagonal handle can be more easily and safely installed in all power tools to prevent walking and falling off. Particularly suitable for locking the quick change chuck.Package include:Hex Shank Drill Bit Set/13Pcs Set+3 Pcs Free