The A296225 is a set of five centre drills which come in a handy plastic case to keep all your drills together. The A225 British Standard centre drills in this set are designed to start a precise hole in the end of a shaft so the shaft can be securely held prior to machining. The bright finish on the drills prevents workpiece material from sticking to the cutting edge. They have a 120-degree point angle and a 60-degree countersink which machines a cone in the workpiece to be used to hold that end of the workpiece shaft securely. The premium High-Speed steel means the A225 can be used to drill many materials including stainless steel, aluminium and steels. The A225 centre drills are double ended and can be used in both conventional and CNC machines, making these tools very versatile and cost effective.