5/8" OD x .470 ID .080" Wall 304 Stainless Steel cheater pipe tube 16" long bar. One side has a flat that is .030 deep leaving a .050 wall thickness at the thinnest point. These make great cheater pipes for  Allen wrenches and anything else you can get into a .470 hole.   They are thick enough to handle a lot of pull but only weigh 10 ounces. You can put them in you tool box and it will never rust. One end has a thru hole for a lanyard if desired. 

Additional ones ship for just 00 more. You can never have enough cheaters around