These stanley fat max flared tip screwdrivers have bars that are made from stainless steel to prevent rusting the tri material handles are moulded directly to the blade tang and have a tpr overlay for grip and comfort the tips are precision machined for excellent head to fastener fit and are hardened for increased durability the screwdrivers have large diameter handles for excellent torque transmission and grip their tapered waist allows fast low torque tightening for easy identification of tip