Cobalt Drill Bit Set- 29Pcs M35 High Speed Steel Twist Jobber Length for Hardened Metal, Stainless Steel, Cast Iron and Wood Plastic with Metal Indexed Storage Case, 1/16″-1/2″. 29 PIECES INCLUDED: 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. HSS WITH 5% COBALT: Durable, Higher Heat & Abrasion Resistance. PRECISE 135°SPLIT POINT & TWIST DESIGN: Prevent walking, clear chips and particles faster. PROFESSIONAL & WIDELY USE: M35 Cobalt HSS is more suitable for hardened material. Particularly successful in cutting through hard metals such as stainless steel, cast iron, high temperature alloy, titanium alloy, hard plastics and woods, and also can be used for softer materials. ORGANIZED HOLDER: Set includes the drill bit holder with size index for easy storage and organizing. 15 PIECES 1/16″-3/8″. 21 PIECES:1-16:-1/4. 29 PIECES:1-16:-1/2. COMOWARE COBALT DRILL BIT SET. 16″ -1/2″, A to Z, #1-#60. HSS WITH 5% COBALT. 7.52 x 4.53 x 2.13 inches; 3.24 Pounds. Product Dimensions: 4.53 inches x 7.52 inches x 2.13 inches. Weight: 3.24 lb. We reserve the right to cancel any order for any reason at any time. We are not responsible for undeliverable addresses. Your satisfaction is guaranteed! All of our items, unless otherwise stated, will only run on 120 volts. Please check to make sure your country complies with these specifications. We will work with you to resolve any problem you may have.