![]() Particularly successful in cutting harden metals such as stainless steel, cast iron, high temperature alloy, titanium alloy, hard plastics and woods, and it also can be used for softer materials. Widely Used - M35 Cobalt High Speed Steel is more suitable for tough, high tensile strength material. Fully Ground twist design helps clear particles faster, decreases friction and heat for a cooler drilling performance. High Quality Material - High Speed Steel M35 (Cobalt 5%) provide extended tool life compared to ordinary drill bits when drilling hard materials,Ĭharacteristics - 135° split point with round straight shank, self-centering prevent walking, make drilling precise and faster. In most cases, our customers would get a much better result with these tips. Try to adjust the RPM when it fails to penetrate.ĭOWNLOADABLE USER GUIDE - We've summed up some tips of drilling metals, including a RPM chart for several common metals, based on our reviews and some articles on the internet. Not for hardened steel / high carbon steel. Manufactured to German DIN338 standard.įOR METALWORKING - Particularly successful in cutting through hard metals(hardness less than HRC38°) such as stainless steel and cast iron, although they can be used for softer materials like copper and aluminium, too. Well packed in a plastic case for convinient storage. Easy cutting without need of center punch.ġ0PC METRIC BITS - The set includes 10pcs of 4mm M35 cobalt steel twist drill bits. COBALT STEEL - Manufactured from M35 cobalt steel, with molybdenum and cobalt added to creates a hardened alloy, measuring Rockwell hardness up to 67, for much faster cutting and extra longer life span, with up to twelve times when compared with an average HSS drill bit.ġ35°SPLIT POINT - the 135°quick-cut split point are self-centering and able to penetrate metals quickly with less pressure, prevent bits from "walking and wanding".
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