MaxTool 21-Piece Twist Drill Bit Set 5% Cobalt M35 Jobber Length Fully Ground for Hardened Steel Metal Cast Iron Sizes 1/16“ to 3/8”; JBS35G10R021S

21 Pieces Cobalt Drill Set delivers professional performance for demanding drilling applications. The set features HSS M35 with 5% cobalt, providing superior hardness, durability, heat resistance and extended tool life when working with tough materials like stainless steel, hardened metals. The cobalt-enhanced steel maintains drill bits hard, sharp, and fast execution in any material for clean results, delivers exceptional durability and heat resistance even at high temperatures, and makes bits ideal for both professional workshops and serious DIY enthusiasts. Standard jobber length provides optimal balance between reach and rigidity for general purpose drilling. The set includes sizes from 1/16"to 3/8" in 64th step, providing with the right bit for any drilling application. Each bit is fully ground to ensure precise cutting edges and consistent performance, reducing friction, and holding up lubricant better for smoother drilling during heavy duty operation. 135-degree chisel with split point for quick penetration and an accurate start. The indexed metal case keeps bits organized and protected, with clearly marked sizes for quick identification and easy selection. Whether you are working in your workshop, or tackling home improvement projects, the comprehensive drill set ensures you have the right tool at your fingertips for professional-quality results.MaxTool is a tools distributor in New York to meet a wide range cutting demand of customers in today markets; MaxTool maintains the leading spirit in supply of standard and custom-made high performance tools;MaxTool warmly welcomes everyone to visit our Amazon Store, and honestly appreciates everyone very much to give a cooperative chance to discuss your requirement;MaxTool will do the best to make each buyer satisfaction. You can always rely on MaxTool;MaxTool slogan is Consistent Quality; MaxTool! ToolMax!

• Premium 5% Cobalt High Speed Steel M35 provides extended tool life compared to ordinary drill bits, Durable, Strong and Impressive performance. It is more suitable for drilling hardened and tough materials
• COMPREHENSIVE SIZE RANGE: Complete fractional size coverage from 1/16 inch to 3/8 inch in 64th increments, providing versatile drilling options for various applications and precise hole sizing
• OPTIMAL PROCESS: Each bit is fully ground and accurate finished as per ASME/ANSI B94.11M standards for enhanced wear resistance, reduced friction, excellent chips moving, improved centering, and hold up lubricant better for smoother drilling. 135 degree chisel with split point prevents "Walking", reduce logging for quick penetration with less pressure required and have an accurate start and quality result
• VERSATILE APPLICATION: Standard jobber length provides optimal balance between reach and rigidity for general purpose drilling tasks and suitable for drilling various materials including metal, wood, plastic, stainless steel, cast iron, and others for professional and DIY projects with clean, accurate results
• ORGANIZED STORAGE: Sturdy index metal case keeps all drill bits securely stored, organized and protected for safely transport, clearly marked by size making easy identify and select the right size quickly for job sites or workshops