Abstract: A golf tee insertion depth measurement tool provides a gauge to facilitate marking the shaft of a golf tee to indicate a desired insertion depth that provides an optimum height for a golf ball placed on the tee, which ball is to be struck by a club face having a height H. The tool has a base portion and an elongate stem portion having a stem length. The base portion has a first surface and a second surface. The stem portion is connected to the base portion and extends outwardly away from the second surface of the base portion. The stem portion is first marked along its length at a location corresponding to the club face height H above the ground. The shaft of a tee is then marked at a location corresponding to the marked location on the stem portion to provide the correct insertion depth for the tee.

Abstract: A golf tee insertion depth marking system includes a measurement tool and a marking tool. The marking tool includes a housing having first and second surfaces. Bores extend into the housing from the first surface. Windows are disposed in the second surface of the housing that provide openings into the bores at various distances from the first surface. Each of the windows is of sufficient size to receive the tip of a marking pen to mark the shaft of a golf tee inserted into the bore. The measurement tool includes a base portion and a stem portion. The stem portion extends upwardly from the base portion and has spaced-apart apertures extending there through. The apertures are used to measure the height of the striking face of a golf club, which height is used to determine which window in the marking tool to use to mark the golf tee.

Abstract: A golf tee insertion depth marking device includes a housing having a first surface and a second surface. A plurality of bores extend from the first surface into the housing. Each bore has a diameter sufficient to receive the shaft of the golf tee when the shaft is inserted therein and a depth that is different from depths of other of the bores. A plurality of windows are disposed in the second surface of the housing. Each window provides an opening into a corresponding one of the bores. Each window is of sufficient size to receive a tip portion of a marking pen inserted therein, whereby the tip portion of the marking pen may make contact with and mark the shaft of the golf tee inserted into one of the bores.