Infinity Tools 7件式碳化鎢尖頭Forstner鑽頭組

After fighting with standard Forstner bits on plywood for years, these carbide-tipped ones cut through MDF like butter and stay sharp. The clean hole finish on my latest cabinet project saved me hours of sanding time.

These carbide-tipped edges are still biting through sheets of MDF like butter after a full week of cabinet work, honestly surprised how clean the exit holes stay. The set covers every size I reach for daily, which means fewer trips back to the truck.

Set to drill a dozen clean 1-inch holes in solid-core MDF shelving and the carbide tips chewed through without any burning or tear-out. The precision-ground rim on these bits is noticeably sharper than my old set, leaving a surface that needed almost no sanding.