Patent ID: 8506210
Filing Date: 2013-08-13
Classification: B23B,Y10T

Abstract:
1. A material removal tool, comprising: a housing body including an active portion; at least one seating surface for a cutting insert operatively positioned on the active portion; and a guide pad positioned in a cavity in a circumferential surface of the active portion, wherein the guide pad is radially adjustable between a first radial position and a second radial position by a differential pressure across the guide pad, wherein the differential pressure is developed by an actuation fluid supplied to the cavity and vented from a first side of the guide pad to a second side of the guide pad through a channel in the guide pad, and wherein the channel opens into a groove on the second side of the guide pad to provide lubricant to the second side of the guide pad, the second side of the guide pad being a radially outward surface of the guide pad.