This M-124 Large Collar Mushroom Stake is the perfect tool for creating the necks of small bottles, but of course you can also use it to hammer out compound curves in metal for any reason.  Compatible with Fretz H-1L and T-101 stake holders as well as the E-101 Extension Holder for a deeper reach (sold separately). All Fretz stakes are made from hardened 420 stainless steel with high polish working areas that protect your workpieces from accidental markings. Note: even though some holders are shown in the picture, all are sold separately. Made in Vietnam.