Swiss Style Shockproof Dial Caliper, Black Face Specifications Include... 6" Measuring Range 0.001" Graduations 0.100" Range Per Revolution Features Include... Four-way jaw for outside, inside, depth and step measurements Solid stainless steel construction Silky smooth movement throughout Shockproof design prevents dial backlash Thumbroll for rapid setting Knurled lock assures precise settings Includes case