ShaftTG is a drive adapter that allows the GripPadTG holder to be used with a drill for controlled bowling ball surface work. ShaftTG must be used in combination with the UPGR8 Bowling GripPadTG holder. The adapter transfers drive power from the electric tool to the GripPadTG holder, enabling fast and even movement of the pad across the surface of the ball. This solution allows convenient surface adjustments and refreshing of the ball finish both at home and at the bowling center during practice or competition. ShaftTG is made of aluminum, providing the required rigidity and durability during use, while also making it easier to guide the GripPadTG holder securely and steadily during manual work. ShaftTG features a Ø 9 mm drive shaft, compatible with standard 3/8" and 1/2" drill chucks. When used together with GripPadTG, ShaftTG develops the Open Pad System further by expanding it to support 5" and 6" pads. It allows manual work, drill-powered holder operation, and improved pad guidance when used on a spinner. ShaftTG is part of the modular UPGR8 SurfaceSystemTG, created for players who want greater control over the preparation, maintenance, and adjustment of their bowling ball surfaces.