This Schrade SC60MBT Extreme Survival Tanto Automatic Knife Plain Black Edge. SC60BT. The SC60BTA is a fast-action automatic knife. These have been converted in-house by us RSU with HD coil springs and action. The tanto point style blade on the SC60BT has a black finish and plain cutting edge along with a notched thumb ramp for improved control. Its handle is black coated aluminum with ergo-friendly scalloped finger grooves. The SC60 includes a tip-up carry pocket clip with a large diameter glass breaker tip.