The KnKut 29pc HD M35 Cob Jobb Drill Bit Set 1/16"-1/2" by 64ths (29KK35) is a professional-grade solution for drilling through the most demanding materials. Meticulously crafted in the USA, this set is engineered to deliver exceptional performance and longevity when working with tough, high-tensile, and work-hardening metals. KEY FEATURES AND BENEFITS: M35 Cobalt Construction: Made from premium M35 Cobalt High-Speed Steel, these drill bits offer superior heat resistance, ensuring they stay sharper for longer periods, even when cutting through abrasive or high-strength materials. 135° Split Point Tip: This advanced tip design allows for quick and accurate drilling starts on contact. It prevents the bit from "walking" or skidding across the material surface, eliminating the need for a pilot hole or center punch. Hex Shanks (3/16" & Above): Bits sized 3/16" and larger are equipped with hex shanks, providing a secure, slip-free grip in standard drill chucks, which is crucial when applying significant torque. Comprehensive Set (29 Pieces): Includes a full range of sizes from 1/16" to 1/2" by 64ths, offering the precise dimensions needed for a wide variety of tasks and applications. Made in USA Quality: Manufactured in the United States, ensuring high standards of craftsmanship, consistent quality, and reliable performance from raw material to finished product. Versatile Material Compatibility: Specifically engineered to drill efficiently through challenging materials such as high strength alloy steels, stainless steel, titanium, manganese steel, armor plate, Inconel, and other work-hardening alloys. SPECIFICATIONS: Drill Bit Material: M35 Cobalt High-Speed Steel Point Angle: 135° Shank Type: Round (for sizes under 3/16"), Hex (for sizes 3/16" and above) Finish: Straw Includes: 29 individual drill bits in a sturdy index or case (typical for sets of this size and type) HOW TO USE: Select the Correct Bit: Choose the appropriate drill bit size from the set based on your material and desired hole diameter. Secure the Bit: Insert the drill bit firmly into your drill's chuck. Ensure it is properly centered and tightened to prevent wobbling during operation. For bits 3/16" and larger, the hex shank will provide an extra secure grip. Prepare the Material: Secure the material you are drilling into to prevent it from moving. Clamps or a vise are recommended for stability and safety. Position the Drill: Place the tip of the drill bit directly onto the marked drilling spot. The 135° split point will help prevent the bit from walking. Begin Drilling: Start your drill at a moderate speed and apply steady, consistent pressure. Allow the bit to cut rather than forcing it, especially when working with hard materials. Use Coolant (Optional but Recommended): For extended bit life and cleaner cuts, especially in hard metals, apply cutting fluid or coolant periodically during drilling. Clear Chips: Periodically back the drill bit out of the hole to clear chips and debris, which helps prevent overheating and clogging. Complete the Hole: Continue drilling until you have penetrated the material to the desired depth. Clean Up: Once drilling is complete, turn off your drill and carefully remove the bit. Clean any metal shavings from the workpiece and surrounding area. BENEFITS OF USING KNKUT 29PC HD M35 COB JOBB DRILL BIT SET 1/16"-1/2" BY 64THS (29KK35): Enhanced Longevity: The M35 cobalt composition ensures these bits resist wear and heat, leading to a significantly longer lifespan compared to standard HSS bits, reducing the need for frequent replacements. Superior Performance in Tough Materials: Specifically engineered to excel in high-strength and work-hardening alloys, this set provides reliable and efficient drilling where other bits may fail or dull quickly. Increased Drilling Accuracy: The 135° split point design virtually eliminates bit wandering, allowing for precise hole placement from the very first contact without the need for additional prep work. Improved User Experience: Hex shanks on larger bits ensure a stable and slip-free connection with your drill, providing greater control and safety during demanding drilling tasks. Cost-Effective over Time: While an initial investment, the exceptional durability and performance in challenging applications translate to long-term savings by reducing downtime and tool replacement costs. Reliable Quality Assurance: Being manufactured in the USA, users can trust in the consistent quality and adherence to high manufacturing standards. FEATURES: Complete 29-piece set with sizes ranging in 64ths from 1/16" to 1/2". Purpose-built for drilling high-strength and work-hardening metals with ease. Durable straw finish enhances tool longevity and visual identification. Eliminates the need for pre-drilling or center punching. Heat-resistant construction maintains sharpness in demanding applications. Crafted in the USA to uphold exceptional quality standards.