Stark USA 30003 115pc Metal Fractionaldrill Index Chart BIT Set Kit For Steel

Each of these 115 drill bits comes organized in a metal indexed storage case for easy transport to your worksite. These drill bits retain their hardness up to 1000 degrees Fahrenheit making them ideal for drilling cast iron, heat-treated steel, stainless steel, and other hard materials. With aggressive 135 degree tips, these drill bits not only last longer but also cut faster than your standard high-speed steel bits. Features: Precise Drilling: The cutting edge is hardened and honed for sharpness, chatter-free design with staggered cutting teeth ensure the precise countersinking and hole smooth clean Professional and widely used bits: HSS is more suitable for hardened material. Particularly successful in cutting through hard metals such as stainless steel, cast iron, high-temperature alloy, titanium alloy, hard plastics, and woods, and also can be used for softer materials Precise 135° split point and twist design: Twist design 135-degree split point and twist design increases the cut