This 22-piece hex shank drill bit set is designed for fast, stable drilling when used with impact drivers and standard power drills . Manufactured from high-speed steel and finished with a durable titanium nitride (TiN) coating , these bits deliver extended service life, reduced heat buildup, and consistent performance. Each drill bit features a 135-degree split point tip , allowing for precise starts without walking and eliminating the need for a center punch. The optimized twist flute design promotes quick chip removal, reducing friction and improving drilling efficiency. The 1/4-inch hex shank provides a secure, non-slip connection in quick-change chucks, preventing spinning under high torque. A reinforced connection between the shank and bit, along with a tapered web design , increases strength, improves concentricity, and helps produce cleaner, rounder holes with reduced breakage. This set includes a range of commonly used sizes and is packaged in a double blister pack with an easy-opening design for convenient storage and organization. Sizes Included (22 Pieces) 1/16"" 3 5/64"" 2 3/32"" 2 7/64"" 1/8"" 2 9/64"" 5/32"" 3/16"" 2 13/64"" 7/32"" 15/64"" 1/4"" 5/16"" 3/8"" 7/16"" 1/2"" Key Features Material: High-Speed Steel (HSS) with titanium coating Tip Angle: 135 split point for accurate starts Shank Type: 1/4"" hex shank for quick-change impact drivers Flute Design: Optimized twist flute for fast chip removal Reduced Runout: Solid bonding and tapered web for improved concentricity Compatibility: Impact drivers and standard power drills Packaging: Double blister pack with easy-open design