– This Set Includes:> 1/16″(1.59mm), 5/64″(1.98mm), 3/32″(2.38mm), 7/64″(2.78mm), 1/8″(3.18mm), > 9/64″(3.57mm), 5/32″(3.97mm), 11/64″(4.37mm), 3/16″(4.76mm), 13/64″(5.16mm),> 7/32″(5.56mm), 15/64″(5.95mm), 1/4″(6.35mm) – Cuttex Tools Titanium Hex Shank Drill Bit Set Made of High Speed Steel (4241) , FULLY GROUNDED, Titanium Coating – Upgraded Version Of HSS Construction For Capability and Durability. – The Cutting Edge is Hardened and Honed for Sharpness, Chatter-Free Design with Staggered Cutting Teeth – Quick Change – 1/4 inch Hex Shank Fits into All power Tools Easily and Securely, specially for locking into quick change chuck. – Durable & Very Useful Stand To Keep All the Bits Organized and handy – Suitable for Steel, Metal, Wood, Plastic, PVC, Aluminium, Countersink, ….- Upgraded Design of Angle Point 135 Degree, Ensure Fast and Efficiently Remove Drilling Dust and Debris, Also Helps Contact for Longer Bit Life.- Excellent Set for Commercial, Professional, Home, General Building and Engineering Use- If you have any question about our products, please feel free to contact us. We will always provide you with professional services until you are satisfied* DESIGN & QUALITY INSPECTED BY CUTTEX TOOLS – ORANGE COUNTY – CALIFORNIA