"Handle is molded around blade via butterfly shank for greater strength and durability","Patented flocking surface providing a non-slip grip.","Screwdrivers have different handle sizes based on the screwdriver length which properly matches handle size with screwdriver application.","Innovative bolster hole for extra turning power","High alloy chrome steel blades are strong and long lasting 3-1/2" X T15 TORX SCREWDRIVER - RED SPTR15C | Matco Tools