Power tool and hammer drill

A hammer drill configured to perform a tool operation through a tip functional element, wherein the tip functional element is mounted to the hammer drill in a mounting direction, the hammer drill comprising:

• a motor;
• an impact mechanism comprising an impact power piece for generating impact power and an impact block capable of reciprocating, wherein a gas space is provided between a rear end of the impact block and the impact power piece;
• and
• a drive mechanism capable of driving the impact mechanism,
• wherein a length of the gas space in the mounting direction is less than or equal to 13 mm when the impact block is at an impact position, and
• wherein an impact frequency of the impact mechanism is greater than or equal to 4500 BPM.

A power tool configured to perform a tool operation through a tip functional element, the power tool comprising:

• a motor;
• an impact mechanism capable of abutting against the tip functional element and capable of impacting the tip functional element along an output axis, wherein the output axis extends along a front and rear direction of the power tool;
• and
• a drive mechanism capable of driving the impact mechanism;
• wherein the impact mechanism comprises:
• an impact rod capable of abutting against the tip functional element;
• an impact power piece connected to the drive mechanism and used for generating impact power;
• and
• an impact block disposed between the impact rod and the impact power piece, capable of forming a gas space with the impact power piece, and capable of reciprocating when impacted by the impact power generated by the impact power piece to reciprocatingly impact the impact rod,
• wherein a minimum length of the gas space in a direction of the output axis is less than or equal to 13 mm and an impact frequency of the impact mechanism is greater than or equal to 4500 BPM.