Behappy Drill Bit Set 29Pcs, Cobalt Drill Bit Set, M35 High Speed Steel, 1/2" ?Drill Bit Set?: 29 sets of drill bits includes 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". This 29 PCS M35 twist drill bit set meets all your needs ?Features of M35 Cobalt?: M35 cobalt drill bit set can effectively drill rigid and high-tensile strength materials. The drill bit is especially suitable for cutting hard metals, such as stainless steel, cast iron, super alloys, titanium alloys, rigid plastics, and wood. It can also be used in soft materials ?135 Degrees Point?: Cobalt drill bit set can be effectively used for most hard and soft objects, 135 degrees point nib and twist design, improve cutting speed, self-centering, prevent walking, and speed up the removal of debris and particles HSS Drill Bie Sets?: HSS cobalt drill set is suitable for hardened steel and has excellent cutting performance. 29 sets of drill bits can be used for a long time. The blades are hardened and polished to improve sharpness, and precise cutting does not shake ?Storage Racks Made of German Craftsmanship?: The cobalt drill bit set includes a portable rose case. The rose case has German craftsmanship, and will be better than the traditional iron box in quality and appearance. It is convenient for storage and organization. The drill set is suitable for most brands on the market. Reliable quality and considerate service. Please contact us if you have any questions, and we will serve you wholeheartedly