Fowler's Long Range Dial Calipers combines microfine graduations, the protection of a covered rack and the accuracy of a hardened stainless steel rack. • Dial hand completes one revolution per each .100", large dial easy to read graduations • Inverted covered rack prevents dirt accumulation in rack gear teeth. Self-contained movement eliminates gear misalignment. • Exclusive dual pinion drive mechanism reduces wear on rack and pinion • Beam graduated in 0.100" increments • Thumbroll for rapid setting • Hardened stainless steel throughout with measuring faces precision ground and microlapped for exceptional accuracy • Depth rod on both models • Knurled lock assures precise settings • Adjustable dial reads directly to 0.001"