{"product_id":"boring-head-set-3mt-clearance","title":"Boring Head Set, 3MT - CLEARANCE","description":"\u003cp\u003eThis set came with a metric thread on the 3MT boring head shank and head. If you never plan to swap the head to another shank, it's not an issue.\u003c\/p\u003e\n\u003cp\u003eThe carbide tipped 9-piece boring bar set includes three different length boring bars each for minimum bores of 5\/16\", 7\/16\", and 9\/16\". The bore depth ranges from 3\/4\" to 3\". The heat treated, alloy steel shanks are held to 0.000 to -0.0005\" from the nominal diameter.\u003cbr\u003eThe drawbar thread is 3\/8\"-16.\u003cbr\u003eNote: If you have a Grizzly G8689 or Micro-Mark 82573 mini mills with the 3 Morse taper spindle, that has a metric threaded drawbar, you will need our 3\/8\"-16 threaded drawbar P\/N 1637 to use this boring head.\u003c\/p\u003e","brand":"Sieg Industrial Group","offers":[{"title":"Default Title","offer_id":52200951873717,"sku":"6847","price":99.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0671\/3157\/2405\/files\/3830.jpg?v=1751483390","url":"https:\/\/littlemachineshop.com\/products\/boring-head-set-3mt-clearance","provider":"LittleMachineShop.com","version":"1.0","type":"link"}