Detachable bit guide sleeve of punch positioner jig tool for cabinet hardware and wood drilling Function: - hole locator for handle of woodworking cabinet - quick release of the bit guide block makes setup simple - front fixture handle makes clamping easy - stop ring retaining block makes bit setting easy - new, improved and reasonably priced. Set it up once to be reused without any other measurements - this template jig allows you to measure the ideal hole position for the outlet handle, handle and knob. - quick and easy adjustment - multi-function template for precise handle/knob mounting on drawers and doors, l-shaped bracket and top screw for horizontal placement, two large front screw locking in vertical position. Made of stainless steel and aluminum, our fixtures are strong enough that even contractors can use them thousands of times. Specifications: Material: stainless steel + ABS Size: 41 * 31 cm