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Hymnorq 8PC Metric Cobalt Steel Twist Drill Bits Set, M35 Grade 5% HSS Co, DIN338 Standard, 135 Degree Split Point, 3mm 4mm 5mm 6mm 7mm 8mm 9mm 10mm, for Iron Aluminum Copper Stainless Steel Metals
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*Packaging of actual item may differ from photo shown
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Hymnorq 8PC Metric Cobalt Steel Twist Drill Bits 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, extremely heat resistant; 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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NO CENTER PUNCH NEEDED - The 135° Quick-Cut points are self-centering and penetrate quickly with less pressure. Will not "walk" or "wander". Straight shank allows for firmly holding and accurate centering, fit for standard drill chucks and regular round collet chucks. Must be used and operated at proper RPMs for maximum efficiency
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8PC METRIC BITS - The drill bit set contains 8 bits sized from 3mm up to 10mm in 1mm increment(3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, 10 mm). The bits are well packed in a red plastic index case for easy picking, transportation, and storage.
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FOR METALWORKING - Particularly successful in cutting through hard metals such as stainless steel and cast iron, although they can be used for softer materials, too. Not for hardened steel / high carbon steel. Try to adjust the RPM when it fails to penetrate.
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EXCELLENT CUSTOMER SERVICE - If you are not fully satisfied with our product for any reason, please contact us. Your message will be replied in 12 hours.
