For 6" Precision Fractional Read Steel Dial Caliper Mic Tool Kit This stainless steel Fractional Dial Caliper combines the same precision that metalworkers are accustomed to with a fractional scale for woodworkers. Perfect for measuring board thickness, depth and inside measurements. Dial reads 64ths and .01". Six inch capacity. Details include: SAE (standard fractional inch measurement) Stainless steel wont rust 0-6 inch measuring Adjustable reset dial Shock-Proof. Adjustable gauge Fine adjustment thumb wheel Locking knob Padded storage case