1/2" Dia. 5" Oal Hss Twist Drill Bit, General Purpose, 3-Flat Shank,, 6-Piece Product Details Accuracy Longevity -135-degree split point starts drilling immediately, requires less force and eliminates ?walking? across the working surface. Tapered web provides strength, durability, and reduces breakage. Three-Flat Design - Three flats on shank eliminate bit spinning in chuck. Our proprietary parabolic flute design brings optimal chip removal which reduces heat build-up. Wide Range of Uses - Drill bits are built for general purpose applications, such as steel/copper/aluminum/zinc alloy/wood/plastics. Also, it's ideal for DIY projects and home maintenance. Durable and reliable quality. Black Gold Finish - Black and gold finish increases lubricity, supplies corrosion protection and increases durability. Ensures longer tool life in multiple working conditions. Tapered web provides strength, durability and reduces breakage. Package Size: 6- Piece drill bits in a tube. Diameter 1/2 inch, total length 5 inch, working length 4-1/2 inch, 135 degree split point, 3-flat shank. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.