Twin-column Dial Height Gages *Dual directional counters can be zero set individually. *Error-Proof digital counter features a zero-reset button. *Bottom surface of the base is hardened and ground lapped for maximum flatness. *Complete with fine-adjusting wheel and lock. *Dial graduation:001" Counter graduation:0.1" *Carbide-tipped scriber. Twin-column Electronic Height Gages Features: *Rigid twin column structure *6 Digit LCD display and minus sign(-) Functions: *Zero setting *Data hold *Large size feed wheel *Lock-on measuring slider *Battery furnished *Carbide-tipped scriber *Resolution:.001"/0.01mm *Inch/mm conversion *Plus/minus presetting For more details, please kindly visit our website. In addition, we also supply the following products: (1) Measuring Tools------Vernier Calipers, Electronic Digital Calipers, Micrometers, Dial Indicators, Squares, Protractors, Gages, etc (2) Machinery Accessories------Tool Post and Holder, Collects, Chucks, Drill Chucks, Milling Arbors, Sleeves, Vises, Working Tables, etc (3) Cutting Tools------including Drills, End Mills, Milling Cutters, Slitting Saws, Saw Blades, Reamers, Taps & Dies, Tool Bits, Carbide Inserts, etc (4) Machinery------Metal Working Machinery, Woodworking Machinery, Shear Bending and Rolling Machine, etc Model No.Range HGTC-12 12"×001" HGTC-18 8"×001" HGTC-24 24"×001" HGTC-300 300mm×01mm HGTC-450 450mm×01mm HGTC-600 600mm×01mm Model No.Range HGTCE-12 300mm/12" HGTCE-18 450mm/18" HGTCE-24 600mm/24"