Check the listing for details. Sandvik Varilock Cat50 Devlieg Adjustable Boring Head + 2" Bore fixed multi bits. Condition: Used. Listed at 139.99 USD. This sale is for (your choice of one) Super High Quality Sandvik Coromant Boring Heads (Free shipping on second if you buy them both).They both have the adjustable Devlieg Boring bit set around 2.5" now can go smaller or bigger by .001" increments .They Both also have a fixed indexable bit set to bore a 2.0" hole .They are almost identical The 1A unit on the left has the upper fixed bit made to chamfer the 2" fixed bits Bore Hole.and the 2A Unit on the right, that bit is set out a little farter(look close at pictures, Picture #2 shows well)). .We have many other Tool Holders for sale (Check our Ebay Store/Items for sale) If you buy more than one Tool Holder, the rest will have FREE shipping. They are all in Good working condition. We have many other tool holders for sale, look at our ebay-store and use some of these key words: BT40 Holder collet Tool CAT40 CAT50 BT35 NMTB50 Guhring Kaiser CV50 HSK Skully Jones ...We have all types of tooling for sale..Look over Our Ebay Store and combine items for only 9.99 shipping cost for all.