Detailed Product Description medium duty core bit Detailed product descriptionMedium duty core bitmade in Chinamodel:ZZ015Material: 45#steelSegment: YG8CSize: 30, 35, 40, 45, 50,55, 60, 65, 67, 80, 85, 90, 100, 110, 125mmAttach 100mm sds plus rod, 8X120mm center bit