The vco6 cutter head is made from cast iron and is user adjustable for tenon size from 1.25″ to 3″ by 1/8″ increments. Price of cutter head with insert 1 insert kit is $3,550.00 + shipping . The price of the insert is $175.00 + shipping. The price of a set of knives are $400.00 + shipping. Please call or email for shipping. Phone (989) 418-5050 Email bignellproducts@gmail.com