About this item

• Made from cobalt(5%) High Speed Steel , increases the wear and heat resistance of drill bit, the life span of drill bit is prolonged.
• Fully Grinding Processing makes the surface of drill bit smoother, the friction can be reduced and the cutting speed is faster.
• 135¡Æ Split Point Design improves cutting speed while easy self-centering, prevent walking and skating across the workpiece surface
• Perfect suitable for drilling in hard metals such as stainless steel and cast iron, and other softer material are also possible.
• 10pcs of 5/32' cobalt drill bit are packed in a plastic case for easy storage and carrying , manufactured in strict accordance with ANSI B94-11M.