JEFE HEX 9-Piece Drill Bits Set,Hex Shank for Quick Change, Titanium HSS Twist Drill Bit Set, 135 Degree Easy Cut Split Point

【Premium HSS Titanium Coating】High speed steel (HSS) with titanium coating gives Jefe Hex drill bit great durability and prolongs 3 times longer life than drill bits without coating. 【Easy Cut Split Point】Jefe Hex Easy Cut Point design makes drilling easy with less pressure and prevents drill bit walking on the working surface. Fully ground modified parabolic flute design clears chips quickly, decreases friction and heat damage. Tapered web provides durability and reduces breakage. 【Quick Change】1/4" (6.4mm) hex shank fits into standard power tools and impact drivers. Jefe Hex drill bit’s solid bonding technology manufacturing eliminates radial runout and improves concentricity. High torque, impact-rated accuracy. 【Applications】 - Jefe Hex drill bit sets are built for general purpose applications, such as DIY projects, home maintenance and MRO (Maintenance, Repair and Operations). Working materials include steel, copper, aluminum, zinc alloy, cast iron, wood and plastics. 【Package & Size】 - 9 pcs drill bit set in a double blister pack with easy opening design. Size range: 1/16", 3/32", 1/8", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8". Size markings on the drill bit shank for easy finding.