The Crescent brand Driveshaft tip is a much greater fit in slotted screws, reducing tendency to cam-out(slip). All tips are vapor blasted to eliminate chipping. The exclusive tapered, torque-enhancing, cushion grip interlocks with durable core to provide a more powerful and comfortable grip. Blade Type: Mechanic"s Square, Tip Style: Slotted, Blade Diameter : 3/8 -Inch by 10 mm, Blade Length : 12 -Inch by 300 mm, Overall Length : 17 1/2 -Inch by 445 mm, Handle Style: Cushion Grip, Blade/Point Size: 3/8 -Inch by 10 mm.