Review on MAGBIT 704 0516 MAG704 16 Inch 13 Inch by Chris Norman

bought this racquet along with a 7" MAGBIT of the same diameter to build a swing set for my kids. both did a great job drilling very clean holes in very wet wood. at first, but the 7" starts to spur after about 50 holes. It still works and is better than the 5/8" spade bit, but I was hoping it wouldn't wear out as quickly. This bit became about Used a third less than the 7" bit and still drills clean holes. So this works well, but I'm also nervous about how long it takes to wear out.