Power tool

A hammer drill comprising:

• a drive mechanism including an electric motor and a transmission;
• a housing enclosing at least a portion of the drive mechanism;
• a spindle rotatable in response to receiving torque from the drive mechanism;
• a first ratchet coupled for co-rotation with the spindle;
• a second ratchet rotationally fixed to the housing;
• a hammer lockout mechanism adjustable between a first mode in which the spindle is movable relative to the housing in response to an axial force applied to the spindle in a rearward direction, causing the first and second ratchets to engage, and a second mode in which the spindle is inhibited from moving relative to the housing in response to the axial force applied to the spindle in the rearward direction, maintaining a gap between the first and second ratchets;
• an electronic clutch adjustable between a first state in which a torque output of the electric motor is a predetermined maximum value, and a second state in which torque output of the electric motor is limited to a value less than the predetermined maximum value;
• and
• a collar rotatably coupled to the housing and movable between a first rotational position in which the hammer lockout mechanism is in the first mode and the electronic clutch is in the first state, a second rotational position in which the hammer lockout mechanism is in the second mode and the electronic clutch is in the first state, and a third rotational position in which the hammer lockout mechanism is in the second mode and the electronic clutch is in the second state,
• wherein the collar is rotatable in either a clockwise or a counter-clockwise direction to switch between the first and third rotational positions without passing through the second rotational position.