SAS POWER TOOLS INC is a precision tightening tool designer and manufacturer based out of Shanghai, China. For almost 50 years of full dedication to the research and development of precision torque control solutions, SAS continues to introduce new products that address issues during assembly production and help customers improve productivity and costs. The best solutions and products don't need to be expensive so everyone can afford to use them. If our products offer no value to the market and/or customers, it doesn't matter how cheap they are. Our focused areas are: 1. MicroTorque tightening for < 1 kgfm with torque variance < 0.05 kgfm, with optional tilt sensor built-in 2. Conventional BLDC shut-off with torque range 0.15-200 kgfm and torque variance < 5% of target torque and I/O communication/remote 3. Current control principle smart pseudo servo screwdriver that performs equal or better than transducerized servo screwdrivers at a much lower cost 4. Accessories that offer distinguished features and functions that are needed but not often seen