BOBBINS & SPOOLS Inches | Millimeters Bobbin: 2 BDX-EL Equipment Type: N E Butt/Wardwell Flange Diameter: 2.75" Traverse: 7.5" to 13.0" in 1/2" increments Barrel OD: Smooth, .810" typical Bore Size(s): .385" or .510" Drive Type: 8 tooth ratchet << Back to List