Designated as Type SF or SFX, these bushings are mostly used when the number of holes drilled will be greater than the expected life of the bushing. Type SF and SFX bushings are also used when a hole is drilled, then a reaming or tapping operation is required. By slipping the bushing out of the liner, another size may be installed for the next operation to be performed. Clamps or lock screws are used to secure them in the fixture.
The most common method of ordering consists of giving us the quantity, bushing type, inside diameter (A), outside diameter (B), and length of bushings or liners required (C).
Please note that head liners (Type HL) are measured overall.
24 pieces – SF40-12-5/16