Ivy Classic, 45838, 23" Mega Magnetic Bit Holder Carded. Mega-Magnetic Bit Holder - 2 powerful magnets create 40x the pulling power of an ordinary magnetic bit holder. Magnet #1 holds and magnetizes the bit while magnet #2 powerfully holds your fastener in place! (See illustrations). Works with all 1" insert bits. Non-rotating outer sleeve for safety. Reach high without a ladder and reach down without bending. Stainless steel front construction. 1/4" hex power shank. Patented in the USA.