100% Satisfaction Satisfaction Guaranteed. 29 Piece Cobalt Drill Bit Set M35 Metal Hardened Stainless Steel Cast Iron. Stainless Steel, Cobalt Steel, Cobalt. 7.56 x 4.92 x 2.83 inches; 1 Pounds. 4.92 inches x 7.56 inches x 2.83 inches. Weight: 1.0 lb. SET OF 29 COBALT DRILL BITS – In the following imperial sizes 1/16″, 5/64″, 3/32″, 7/64″, 1/8″, 9/64″, 5/32″, 11/64″, 3/16″, 13/64″, 7/32″, 15/64″, 1/4″, 17/64″, 9/32″, 19/64″, 5/16″, 21/64″, 11/32″, 23/64″, 3/8″, 25/64″, 13/32″, 27/64″, 7/16″, 29/64″, 15/32″, 31/64″, 1/2. M35, Fully Ground, 135° Split Point – Our Drill Bits Contain 5% Cobalt, Are Fully Grounded for a Precision Drilling Diameter. 135° Split Point Design Makes it Easier to Drill Repeated Holes in Harder Materials. PLASTIC STORAGE CASE INCLUDED – Incredibly Tough and Durable Plastic Case. Perfect for Keeping Your Cobalt Drill Bits Neatly Organized and Safe. COBALT DRILL BITS ARE THE PERFECT DRILL BITS FOR METAL – As well as other hard materials such as Stainless Steel, Hardened Steel, Cast Iron, Bronze, Titanium, and More! LIFETIME GUARANTEE – Here at Owl Tools (USA Based Company) we only care about your satisfaction. Cobalt Drill Bit Set of 29. We offer the best prices around on high quality products. Our E-store includes media such as books, movies, music and games while offering electronics, toys, sporting apparel, clothing, tools, general home, garden items and more. We are always working hard to ensure your package arrives as soon as possible. We do not accept P. Please provide a physical address. We try over very best to make sure every customer is completely satisfied. If there’s a problem, message us! We’re happy to help.