I recently had to remove some old, cracked mortar from my walkway and stumbled upon the Raizi Mortar Raking Diamond Bit, which proved to be a helpful and efficient tool. The 5/32 inch dia. bit worked great for removing the old mortar with precision and ease, as promised, and the 1 inch length was just perfect for my job. The bit fit snugly onto my rotary tool and despite a bit of dust generated during use, the bit worked smoothly, with no vibration or wobbling. I was able to completely remove thSee full review