IDL Valve Guide Core Drill. IDL PN - #1005. Shank - Square for IDL Machines. Size -. 600" Drill. 435" Pilot. | eBay!Core drills for boring out cast in head valve guides..

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Fine tune the fit of your valve guides with reamers, guide hones and variety of other sizing tools. 4 Dec 2013 .312" X .406" Core Drill for Seat & Guide Machines - K-4190. $99.99. Add To Cart · Wish Lists. Compare .312" X .412" Core Drill for Seat & Guide Machines - K- Piloted valve guide core drills are manufactured from High Speed Steel and intended to be used in a Valve Guide and Seat Machine, Bridgeport style machine, This VW Valve Guide Coring Drill Bit is used to thin the valve guide to relieve the "Press Fit" it has in the head. Once this is done, the valve guide easily taps out Core Drill and Reamers used to bore out old cast in head valve guides to accept new press in valve guides. Home > Valve Guide Tools > Valve Guide Core Drills. Valve Guide Core Drills. valve guide core drills_20170310105755. €150.58. K-LINE Core Drill 10,3187