The utility model relates to the technical field of location degree gauges, in particular to a hole type location degree gauge which comprises a
handle and a detection plate, the detection plate is arranged on one side of the
handle, a lining is arranged on the inner side of the detection plate, a guide sleeve is arranged on the inner side of the lining, a positioning block is fixedly connected to the inner side of the detection plate through a bolt, a positioning pin lining is arranged on the inner side of the detection plate, and a round positioning pin is arranged on the inner side of the front-end positioning pin lining. A rhombic positioning pin is arranged on the inner side of the rear end positioning pin
bushing, a detection rod is arranged at one end of the detection plate, a rhombic pin is arranged in the positioning pin
bushing, a limiting table block is fixedly connected to one side of the rhombic pin, a first cylinder is fixedly connected to one side of the limiting table block, and a positioning pin hole is formed in the inner side of the detection plate. According to the device, a
height gauge, a dial indicator or a three-coordinate gauge for checking the position degree of the cylinder cover hole
system is changed into a special checking fixture for checking the position degree of the hole
system, so that the checking mode is changed, the checking efficiency is higher, the checking frequency is improved, and the produced cylinder cover is ensured to meet the drawing requirements.