Specification Brand : Vermont Gage BulletPoint1 : High Speed Steel, BulletPoint2 : Short Series BulletPoint3 : Taper Shank ItemName : 1/2" Interchangeable Pilot Counterbore - Taper Shank ItemTypeKeyword : counterbores Manufacturer : Meda - Superior Import Material : High Speed Steel MeasurementSystem : Imperial PartNumber : 1226032 ProductDescription : Overall Length - 4 5/16", MT1 Shank, Pilot Hole Diameter - 3/16". Used in spot facing and counterboring operations. . These counterbores can be used with a wide variety of pilots. The shank diameter of the pilots ordered must be the same as the pilot hole size in the counterbore. We stock a complete range of pilots; please inquire. ProductSiteLaunchDate : 2012-08-02T17:28:51.466Z UnitCount : 1 UnspscCode : 20121600