Boneham Bushings – The Difference Boneham Drill Bushings are manufactured to the highest quality with dedication to superior concentricity and tolerances. Boneham bushings provide the accuracy required for precise drilling and alignment.
Blacked on unground surfaces for superior finish and recognition.
Boneham bushings feature an undercut and grinding to the head to provide a flush fitting in the jig.
Bore size marked for easy identification in application.
SF and SFM bushings are deep knurled on the head to allow for easy removal in the oiliest of environments.
Heat treated to 62-64 HRC.
A wide range of bushings feature OD lead for easy location.
All bushings feature internal and external chamfers and radius’s to reduce wear and improve chip control.
Manufactured from quality EN31 bearing steel which has a high degree of hardness and abrasion resistance. Special material options can be manufactured including Boneham’s famous Nitralloy, Carbide, 300 and 400 series stainless and tool steels.