Key features

• •Cobalt Steel - Manufactured from M35 grade 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.
• •For Stainless Steel - 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.
• •Self-centering - The 135° quick-cut points are and penetrate quickly with less pressure. No center punch is needed. Will not "walk" or "wander".
• •5PC Set - The set includes 5pcs of 3/8" diameter M35 grade cobalt steel twist drill bits, packed in a plastic case as showed in the picture.
• •Satisfaction Guaranteed - Here at Migiwata we only care about your satisfaction. We try our best to ensure each product is in perfect condition before you get it, but if something is not up to your satisfaction, please contact us for a full refund or replacement.