Hand-held power tool

1 . A hand-held power tool, comprising:

a drive unit;

an output shaft at which a tool holder is formed, the tool holder including an internal polygonal holder for connection to a first insertion tool and an external polygonal holder for connection to a second insertion tool, a locking unit configured for locking the first insertion tool being assigned to the tool holder; and

a striking mechanism connected to a drive element, wherein the striking mechanism encompasses an impact body which is configured to impart an impact to the output shaft;

wherein the locking unit includes at least one locking element, the locking element including at least one contact surface which axially supports the second insertion tool,

wherein the locking unit includes at least one actuating element which accommodates the locking element in a form-locked manner,

wherein the actuating element encompasses at least one first internal holder for accommodating the locking element, a second internal holder for accommodating a support element, and a third internal holder for accommodating a fastening element,

wherein the actuating element includes an at least partially circumferential collar, and the locking element includes an at least partially circumferential shoulder, the shoulder resting axially against the collar,

wherein the actuating element at least partially accommodates the fastening element to form a clamping connection, the fastening element clamping the support element onto the actuating element and fixing the locking element,

wherein at least one section of the locking element at least partially projects over the actuating element in an axial direction pointing away from the drive unit;

wherein, in a connected state, the second insertion tool rests directly against the at least one contact surface of the locking element.

2 . The hand-held power tool as recited in claim 1 , wherein the locking element radially locks the first insertion tool and the second insertion tool rests axially against the locking element.

3 . The hand-held power tool as recited in claim 1 , wherein the locking unit includes at least one setting element, against which the locking element rests and which guides axial forces into the output shaft.

4 . The hand-held power tool as recited in claim 3 , wherein the locking unit includes at least one return element, the return element resting axially against the setting element, and the return element returns at least the locking element from an unlocking position, in which the first insertion tool is unlockable, into a locking position, in which the first insertion tool is lockable.

5 . The hand-held power tool as recited in claim 4 , wherein the return element is a spring element.

6 . The hand-held power tool as recited in claim 4 , wherein the return element and the locking element rest against the support element.

7 . The hand-held power tool as recited in claim 6 , wherein the support element is a support sheet.

8 . The hand-held power tool as recited in claim 6 , wherein the support element is in the shape of a cup.

9 . The hand-help power tool as recited in claim 8 , wherein the support element is a support sheet.

10 . The hand-held power tool as recited in claim 1 , wherein the support element and the actuating element form the clamping connection using the fastening element of the locking unit.

11 . The hand-held power tool as recited in claim 10 , wherein the fastening element rests against the support element.

12 . The hand-held power tool as recited in claim 1 , further comprising:

a rotary percussion unit having a length of maximally 140 mm, the rotary percussion unit including the drive unit, the striking mechanism, and the locking unit.

13 . The hand-held power tool as recited in claim 12 , wherein the rotary percussion unit has a length of maximally 130 mm.

14 . The hand-held power tool as recited in claim 12 , wherein the rotary percussion unit has a length of maximally 120 mm.