3PCS Cobalt Drill Bits, M35 HSS Metal Jobber Length Twist Drill Bit Set, Suitable for Drilling in Hard Metal, Stainless Steel, Cast Iron (3.2mm+4mm+5mm)

Straight Shank M35 5% Cobalt Twist Drill BitsSpecification: 3.2mm / 4mm / 5mm​Shank: Straight/Round shankMaterial: HSS M35Degree: 135°Scope of application: stainless steel, aluminum alloy, iron. Copper, die steel, galvanized pipe, angle iron, plastic, wood, etc.Applicable machines: pistol drill, bench drill, hand drill, bench drill, etc.  Package Include:3.2mm+4mm+5mm Cobalt Drill Bits

• 【M35 COBALT STEEL】Our drill bits are crafted from premium M35 high-speed steel, which is significantly harder than standard HSS. With 5% Cobalt content, they offer superior wear-resistance, enhanced durability, and an extended lifespan, making them ideal for heavy-duty applications.
• 【Precision Engineering】Featuring a 135° split point geometry, our drill bits ensure pinpoint accuracy from the start, minimizing walking on the surface. The fully-ground body allows for faster drilling with fewer imperfections compared to conventional rolled drill bits, while also providing excellent chip and heat removal.
• 【Versatile Professional Use】Designed to effortlessly cut through tough materials like Stainless Steel, Steel, Sheet Metal, and Cast Iron, as well as softer materials such as Plastic, Aluminum Alloy, and Wood. Please note, these drill bits are not suitable for Glass or Ceramic materials.
• 【Optimized Spiral Groove Design】The fully ground spiral groove design ensures rapid particle clearance, reducing friction and heat buildup. This results in a faster, cooler, and more efficient drilling experience, even in the most demanding conditions.
• 【Enhanced Heat Resistance】Our drill bits are engineered to withstand high temperatures, maintaining their hardness and cutting efficiency even under intense heat. This makes them perfect for prolonged use in high-speed drilling applications without compromising performance.