/ Jobsite & Shop Tools / Hand Tools / Layout Tools / Carpenter Rules / AR-18 * Not actual product image 36102 AR-18 Carpenter's Rule 36102 Other similar products The AR-18 18" Aluminum Rule is a parallel rule made of anodized aluminum. 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. Features Specifications Contact Starrett Features Designed to meet the general-utility measuring needs of schools and shops, woodworkers, tinsmiths, metal workers, and bench applications They lie flat, resist bending and feature large , easy-to-read graduations and numbers that are heavier than conventional machine-graduated scales Rules are 18" in length and .075" (1.9mm) thick Specifications Material: Aluminum Blade Lengths (in): 18" Blade Widths (in): 1-1/8" Thickness (in): .075" Graduation Style: English Graduations: 1/8", 1/16"