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

STROTON, a Brand with a Rich Heritage STROTON, a renowned brand, was first established in 1990 by Carl's father-in-law, Mr. Stroton. Carl was well aware of Mr. Stroton's integrity and honesty, which prompted him to name the company STROTON.

Unparalleled Products What sets STROTON's products apart is their exceptional quality. The company owns a cobalt ore mine, which allows it to produce cobalt alloy products with unmatched performance.

Reasons to Choose STROTON STROTON offers a wide range of hardware products and supplies for many world-class brands. Customers can find products that rival those of famous global brands at STROTON.

Premium Cobalt Drill Bits STROTON's Premium Cobalt Drill Bits stand out for their superior features and benefits:

True Premium Cobalt (5% Cobalt) Researches have shown that HSS with cobalt offers higher temperature resistance, red hardness, wear resistance, and better heat treatment response compared to HSS without cobalt. The 5% cobalt content in these drill bits provides exceptional heat and wear resistance, ensuring 3X drilling efficiency and 3X tool life.

Split Point Design The split point design of these drill bits allows them to start drilling immediately with less force, reducing "walking" across the work surface. They are ideal for a wide range of materials, including stainless steel, mild steel, iron, hard metal, aluminum, copper, plastic, and hardwood.

Optimal Usage For efficient drilling, it is recommended to maintain a low speed (200 to 1000 RPM) and use cutting fluid, such as stainless steel tapping oil or engine oil, to prevent the drill bits from overheating. It is also important to remain steady and patient during the drilling process, starting slowly and applying force gently until the drill bit starts chipping.

Product Availability STROTON offers a variety of cobalt drill bit sets in both SAE (inch) and metric sizes, catering to the diverse needs of customers. These sets include: - 1/16-3/8 inch (21 pcs) - 1/16-1/4 inch (13 pcs) - 1/16-1/2 inch (17 pcs) - 1-10 mm (19 pcs) - 4-32 mm (15 steps)

Customer Reviews STROTON's premium cobalt drill bits have received overwhelmingly positive reviews, with an average rating of 4.4 to 4.5 out of 5 stars across various product listings.

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