ROLLER, CONCAVE (1-3/16OD) Product Code: HWD-01008Price: Check LatestRoller – Zinc Plated Steel• A: 1-3/16” (3cm)• B: 5/16” (.8cm)• C: 3/8” (.9cm)• D: 1/4” (.6cm)• Hole is countersunk for 1/4” flat head machine screw