Compare Quick view Scientific Cutting Tools SKU: SMT29327 Scientific Cutting Tools .042 Carbide Back Rake Boring Bar HB42C (LOC2703A) MPN: HB42C Cutting Diameter: .042" Shank Diameter: 1/8" Coating: TIN Overall Length: 1.5" MSRP: Was: Price Now $19.95 50 In Stock Quantity Add to Your List