These will speed up welding tubing both round and square butt welding as in the placement of round hand rail sections. I found them in the current Enco flyer Enco #PB328-2107 11" locking pipe pliers $14.95 1 ½" to 2½"

Both square and round tubing
They work well and are well made they are the Stronghands brand
The Enco free shipping code Promo Code FSCAUG: Free UPS Ground Shipping on orders of $25 or more. Expires 9/30/11 - Order minimum of $25.00 is required. Remember Case sensitive when using!