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Hymnorq Metric 1.0-10 mm Straight Shank M35 Grade Cobalt Steel Jobber Length Twist Drill Bits Set of 19pcs for Metals, Packed in Indexed Metal Case
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Hymnorq Metric 1.0-10 mm Straight Shank M35 Grade Features
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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.
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SELF CENTERING - The 135°quick-cut pilot split points are self-centering and can penetrate quickly with less pressure. The bits will not "walk" or "wander". Straight shank allows for firmly holding and accurate centering, fit for standard drill chucks and regular round collet chucks.
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19PC METRIC SET - The set includes 19pcs of M35 cobalt steel twist drill bits: 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7 mm, 7.5mm, 8 mm, 8.5mm, 9 mm, 9.5mm, 10 mm. Well organized in a tough metal indexed storage case for easy transport to your worksite.
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FOR 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. Not for hardened steel / high carbon steel. Try to adjust the RPM when it fails to penetrate.
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DOWNLOADABLE 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. In most cases, our customers would get a much better result with these tips. Welcome to download.
About Hymnorq Metric 1.0-10 Mm Straight Shank M35 Grade
OVERVIEW This is a 19-piece drill bit set engineered to handle a long time of cutting. The bits will give you the convenience of a high-speed drilling in stainless steel, titanium, and other thick metal workpieces. Equipped with a split-point at the tip, the cobalt steel bits get on drilling upon contact. With them, you don't have to worry about walking or the need for a pilot hole. The fact that it doesn't wander means great drilling accuracy, something that comes in handy especially when doing repetitive drilling of holes. The sizes range from 1.0mm to 10mm. The small increments ensure you get that precise bit size. What's more, the sizes are printed on each compartment and on bits over 3.5mm to eliminate any guesswork. KEY FEATURES Constructed of M35 grade cobalt steel (with 5 percent cobalt added to high speed steel) for super abrasive resistance in tough metals Cobalt steel extends cutting edge life Extra hard drill for greater wear 135° split point tip starts on contact, cuts with less force WHAT'S INCLUDED 1mm, 1.5mm, 2mm, 2.5mm, 3mm, 3.5mm, 4mm, 4.5mm, 5mm, 5.5mm, 6mm, 6.5mm, 7 mm, 7.5mm, 8 mm, 8.5mm, 9 mm, 9.5mm, 10 mm. One piece for each size. Package:Indexed metal case SATISFACTION GUARANTEEDSome customers said the drill bit box was open and the drill bits were all scattered inside the shipping box. We've improved the package by putting the bit case into a thick plastic bag to avoid it from opening. However, you still have a tiny chance to receive a product like that, as a few item of old package are still in stock. Please contact us for a free replacement if bits are missing on arrival. Thanks for your understanding.
