This is a cutter specially designed for the ladies.Similar to the TC10p bigger cutter, but the head is not sprung, and the handle is sculpted to fit the hand better, apparently. The cutting fluid is gravity fed, rather than pump assisted. Not suitable for men..who tend to apply too much pressure on occasion.
The difference in impact between a steel wheel (steeper angle-blunt point) and a tungsten carbide wheel (shallow angle-sharp point) has been likened to the difference between the effect of a 250 LB. man in wingtips and his 98 LB. companion in high heels, both walking on a hardwood floor. The pressure applied to the glass is directly proportional to the amount of wheel touching the surface. This is one of the reasons carbide wheels have up to 25 times the life of steel wheels.