Crack Eraser.com tungsten carbide drill bits for Windshield Repair. Will not slip when drilling and last longer that other windshield repair drill bits. The easy dispensing 5 pack containers dispense one bit at a time and are perfect for the windshield repair technician that demands a high quality burr that will not get dull with one hole. These bits do not need a pilot hole to drill without slipping, giving you great control.