Our most popular style, these knobs have a modern, aerodynamic look with a satin finish to help hide dirt and scratches in the field. Special attention has been paid to round all edges for a particularly user-friendly design on the 3P4, 3P4T, & 3P5. The 3P1 is a miniature version designed for low to medium torque applications where space is at a premium. Inserts are available as male/female, blind/thru holes. Metric and locking are also standard. Insert materials include steel, brass, stainless, and aluminum.