Bon 12-577 7-1/2-Inch by 4-1/2-Inch Bronze Hand Concrete Groover, 1-1/2-Inch Bit Depth by 1/2-Inch Bit Width 7-1/2-Inch length 4-1/2-Inch width 1-1/2-Inch bit depth 1/2-Inch bit width Wood handle