Bosch 1006VSR 3/8-Inch Keyless Chuck Drill Best in class power-to-weight ratio with maximum power at a minimum rate Jacobs ratcheting 3/8-inch keyless chuck holds accessory exceptionally well with minimal slipping Improved lock-on switch design is recessed in handle to prevent accidental lock-on Over-sized 2-finger trigger greatly increases comfort when frequently changing drilling speed Sturdy belt clip frees up hands to do other tasks