Quick and Efficient Palm Control - Thumbwheel reversing mechanism enables easy change of direction while free-wheeling back plate allows application of steadying pressure without reversing. 18 degree angle - The unique 18 degree offset handle provides access where the hand is not able to go, which makes it ideal for inaccessible fasteners without a lot of clearance. Accessibility Plus Strength - The 72 tooth ratchet head design delivers superior accessbility through its compact head and 50 effective swing arc. 17 teeth are engaged during use, with each tooth bearing only 6% of the drive load - providing strength and durability. Backed by SK's Lifetime Warranty.