mine Air Belt Sander Option Narrow Belter D Arm Pulley Width 8mm NR111-P04D 1 piece

Catalog number: NR111-P04D Features: ● Replacement arm for Narrow Belter. ● By replacing the arm, a belt of 3 inches, 4 mm width, and 330 mm circumference is used. ● By replacing the arm, a belt of 18 inches, 20 mm width, and 330 mm circumference is used. ● By replacing the arm, a belt of 3 mm to 6 mm width and 330 mm circumference is used. ● By replacing the arm, a belt of 10 inches, 12 mm width, and 330 mm circumference is used. Applications: ● Polishing and grinding work for aluminum, stainless steel, iron, and other items. Specifications: ● Product name: D arm ● Compatible models: NR-111-S/NR-112/NR-11E ● Wheel diameter (mm): 16 ● Wheel width (mm): 8 ● Pulley width (mm): 8 ● Pulley diameter (mm): 16 ● Belt width: 10 to 12 mm x circumference 330 mm ● For use with Narrow Belter 111S and 11E. Material/Finish: Iron, Urethane rubber