Cobalt Drill Bit Set (1/16-3/8 Inch, 21PCS) for Stainless Steel, Hard Metal, Cast Iron, Plastic and Wood

STROTON has a long and rich history, first established in 1990 by Carl's father-in-law, Mr. Stroton. Carl was well aware of Mr. Stroton's integrity and honesty, which led him to name the company STROTON.

What sets STROTON's products apart? The company owns its own cobalt ore mine, enabling it to produce cobalt alloy products with unparalleled performance.

Why choose STROTON products? The company manufactures a vast array of hardware products, supplying many world-class brands. Customers can purchase products that are comparable to famous global brands.

STROTON offers a diverse range of cobalt drill bits, including Metric Cobalt Drill Bits and SAE Cobalt Drill Bits. These premium cobalt drill bits are designed to provide exceptional performance.

The Premium STROTON Cobalt Drill Bits stand out due to their unique features. Research has shown that HSS with cobalt has higher temperature resistance, red hardness, wear resistance, and better heat treatment response compared to HSS without cobalt.

The drill bits have a red hardness of 68 HRC, which translates to 3 times the cutting ability and 3 times the durability. These drill bits are made of True Premium Cobalt, a valuable material costing $80,000 per ton.

Unlike the "Cobalt" bits sold by some competitors, which are merely coated or have a tiny amount of cobalt, STROTON's drill bits contain a true 5% cobalt alloy steel, providing superior heat and wear resistance.

The split point design of the drill bits allows for immediate drilling with less force, eliminating "walking" across the work surface. These versatile drill bits can be used on a wide range of materials, including stainless steel, mild steel, iron, hard metal, aluminum, copper, plastic, and hardwood.

To ensure optimal performance, it is recommended to use the drill bits at the appropriate speed range (200-1000 RPM) and with the proper cutting fluid, such as stainless steel tapping oil, engine oil, or even household items like vinegar or soy sauce.

STROTON offers a diverse range of cobalt steel products, including 1/16-3/8 inch, 1/16-1/4 inch, 1/16-1/2 inch, 1mm-10mm, and 4mm-32mm drill bit sets. These products have consistently received high customer ratings, with an average of 4.4 to 4.5 out of 5 stars.

In summary, STROTON's premium cobalt drill bits provide exceptional performance, durability, and versatility, making them a top choice for professionals and DIY enthusiasts alike.

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