COMOWARE Cobalt Drill Bit Set- 115Pcs 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″. Style: M35 115PCS Brand: COMOWARE MPN: TGTWISTCobalt-115-M UPC: 657419854696 EAN: 0657419854696. Cutting Angle String: 135 Degrees. Package Dimensions? 16.38 x 7.32 x 4.92 inches; 8.36 Pounds. Date First Available? May 25, 2018. Best Sellers Rank: #16,160 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement) #36 in Jobber Drill Bits. #36 in Jobber Drill Bits. Customer Reviews: 4.5 4.5 out of 5 stars 3,745 ratings. 115-Piece Drill Bit Set: Includes 29 fractional sizes (1/16 to 1/2 in 1/64 increments), 26 letter sizes (A to Z), and 60 numbered sizes (#1 to #60), providing comprehensive coverage for all your drilling needs. HSS with 5% Cobalt: Crafted from durable High-Speed Steel (HSS) with 5% cobalt content, offering superior heat and abrasion resistance for long-lasting performance. 135 Split Point & Twist Design: The precise 135 split point prevents walking, while the twist design efficiently clears chips and particles for faster, cleaner drilling. Professional-Grade Versatility: Made from M35 cobalt HSS, ideal for cutting through hardened materials like stainless steel, cast iron, titanium, and more, while also suitable for softer materials. Organized Storage: Comes with a sturdy drill bit holder featuring a size index for easy organization and quick access to the right bit.