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Precision drilling meets durability with this Dart 4MM HSS Cobalt Twist Drill. Engineered from high-speed steel infused with cobalt, this single drill bit delivers exceptional hardness and heat resistance, making it ideal for demanding applications across steel, cast iron, and stainless steel. The twisted flute design ensures efficient chip removal and cleaner holes with minimal breakage. Whether you're tackling professional projects or serious DIY work, this reliable drill bit maintains its sharp edge longer than standard alternatives, saving you time and money on replacements. A must-have addition to any tradesperson's toolkit.
