Size: XG12-15/16 Champion Cutting Tool Brute Platinum XL12 Silver & Deming drills are the best twist drills for the professional looking to drill large diameter holes in tough materials. They are manufactured in the USA of premium high speed steel for faster drilling and longer tool life. 118* split point allows the operator to drill precise, accurate holes. XL12 drills are ideal for mainteance departments, machine shops, auto shops,and other industries. Champion Silver and Deming drills are used extensively in maintenance departments, machine shops and in construction environments. Silver and Deming drills are perfect for portable drilling and drill presses where the chuck capacity is 1.3cm .