Product Description The AUTODELO spot welding drilling tool is used for body repair work as needed. - Equipped with a spring-loaded centering rod. - Designed to work with power tools. - The cutting crown is made of high-speed steel P9. - The crown diameter is 9.5mm. - Supplied in an individual blister pack. Often, when repairing the body of a car or other equipment, there is a need to drill spot welds, in which case a special tool - a crown with a mandrel for drilling spot welds - is necessary.