PP78 78mm Outside Diameter with Drill Size Range 56mm - 63mmPlain Drill Bushes with a 78mm outside diameter and a bore range of 56mm to 63mm. Select the Inside diameter (drill size) required and choose one of the standard-length options from the drop-down menu. Boneham drill bushes are manufactured in accordance with BS1098 Pt.2 1977 / ISO 4247 / DIN 179A. The Boneham brand of bushes play close attention to accuracy with strict adherence to concentricity and tolerances. Plain Drill Bushes are also known as headless bushes. As a UK manufacturer or drill bushes, Boneham offer special bushes to customer specification and drawing.
Why choose the PP78 Bush for your application?
The PP / PH range are precision ground on the ID and OD to press-fit into a H6 reamed hole. The inside diameter is ground to F7 limits for drills. The tolerance and concentricity of Boneham bushes also make them ideal for location and alignment bushes in many jig and tool applications. The standard OD size of 78mm has a bore range of 56mm to 63mm in mainly 1mm increments, but also some 0.50mm sizes. Imperial / Inch bores sizes are available, sometimes in stock or to order.