Charlet Moser's Pulsar, introduced in 1984, was a significant improvement over the first widely distributed real ice tool, the Simond Chacal that many old-time climbers still remember with nostalgia. A few years later, CM introduced the first bent shaft, and then an interchangeable shaft system which make it possible to use three different shafts (short straight, short curved, long). The latter system appears to be as reliable and solid as a normal tool. They also had for a few years a lighter version of the Pulsar with a straight hollowed shaft which has an excellent balance.
CM's Pulsars are well-proven tools, and have been used on some of the hardest climbs ever.