Features and Benefits:Safety Ribbed Housings for Handle FacesFive Head Diameters 1.2" to 3.1"6 Face Shore Hardness"sD-21 to D-80Sturdy Hickory HandlesRugged Malleable Cast Iron headsInsulated Pop Ups SlimLine Driver Set Includes Slotted 3.0, 4.0mm, Phillips #1, #2 and Square #1, #2 SlimLine Blades