Jobber length drill bit. Manufactured to National Aerospace standard 907. Made of heat resistant cobalt, they display higher red hardness which permits speeds upto 30 percent greater than High-Speed Steel drills and are especially effective in drilling tough, high tensile strength materials like PH stainless steel, inconel, and titanium. HIGHER SPEED DRILL: Manufactured to National Aerospace Standard 907 and made of heat-resistant cobalt, these drill bits display higher red hardness which permits speeds up to 30% greater than high speed steel drills BEST USES: The m35 5% cobalt drills are effective in drilling tough, high tensile strength materials such as Inconel, stainless steel and titanium, as well as wood, plastic and other hard metals 135 DEGREE CUTTING ANGLE: Jobber length drill bits have a 135 degree split point for self-centering, fast penetration, and drilling with precision METRIC SIZES INCLUDED: Full 25pc drill bit set comes with plastic storage holder case and includes metric sizes ranging from 1mm to 13mm by 0.5mm ABOUT : specializes in supplying a full line of industrial and contractor cutting tools since 1923; Our products include drills, taps and dies, reamers, end mills, carbide burs, countersinks and more.