One of the most common problems CNC shops face is that of non uniform tightening of insert tips of cutters if tightened with ordinary screw drivers. A result of which is improper cut surface and out of tolerance job dimensions. M/s. Summit Engineering Technology Pvt. Ltd., has introduced "Felo"-Germany make torque screw driver with interchangeable tips to overcome such problem. The torque screw drivers are available in two piece construction, a Ergonomically refined handle with exchangeable blades ( Insert ) for greatest flexibility in all areas of use. Presentranges available are 0.6 to 1.5 Nm , 1.5 to 3.0 Nm , 3.0 to 5.4Nm. Torqe can be very easily adjusted with the help of allen key. Settorque achieved is indicated by acoustic and mechanic signal. No over torquing is possible as after achieving set torque it starts to slip. Various screw driver blades suitable for slotted heads, PH, PZ, TORX and TORX Plus (IP) are available. These exchangeable blades are manufactured from chrome-molybdenum-vanadium steel with superior hardness which exceeds DIN and ISO requirements by up to 100% and have black tips for precise fitment. Other"Felo"- Germany make products available are : Variety of screw drivers, T-Handles, Pneumatic screw driver bits, Magnetic bit holders, Allen Keys etc.