Name: "Durable 3.2mm Iron Drill Bits - Long-Lasting & Reliable"
SKU: Fatima-5465
Price: 80.00 INR
Availability: InStock

Certainly! Here’s a concise description of 3.2mm iron drill bits, along with key highlights:

Material: These drill bits are manufactured from M35 cobalt steel. They contain molybdenum and cobalt, creating a hardened alloy with a Rockwell hardness of up to 67. Compared to average HSS (high-speed steel) bits, these cobalt steel bits offer much faster cutting and an extra-long lifespan—up to twelve times longer.
Self-Centering: The 135° quick-cut pilot split points ensure self-centering. These bits penetrate quickly with less pressure and won’t “walk” or “wander.” The straight shank allows for firm holding and accurate centering, fitting standard drill chucks and regular round collet chucks.
Quantity: The set includes 10 pieces of 3.2mm M35 cobalt steel twist drill bits, conveniently packed in a plastic case for storage.
Application: These bits are particularly successful in cutting through hard metals (with hardness less than HRC38°), such as stainless steel and cast iron. They can also be used for softer materials like copper and aluminum, but not for hardened steel or high carbon steel.
User Guide: You can download a user guide with tips for drilling metals, including an RPM chart for common metals, based on reviews and internet articles.