/ Precision Measuring Tools / Precision Hand Tools / Hardness & Surface Roughness Testers / Surface Roughness Gages / SR100 * Not actual product image 20950 SR100 Surface Roughness Tester 20950 Other similar products Note:This item is discontinued. Please consider the recommended alternative listed above or contact our special order department at (978) 249-3551 x410 for more information. Contact Starrett