Peacock One Revolution Dial Gauges; 0.01mm , Range 0.8mm 17Z Needle Nose Pliers Bent 3mm Hex Bit Socket 635 TAEGUTEC External Turning Toolholder 3mm Hex Bit Socket 635 4mm Hex Bit Socket 7mm Deep Impact Socket 2400 8mm Deep Impact Socket 9mm Deep Impact Socket 10mm Deep Impact Socket 11mm Deep Impact Socket 12mm Deep Impact Socket 13mm Deep Impact Socket 14mm Deep Impact Socket 15mm Deep Impact Socket 16mm Deep Impact Socket 17mm Deep Impact Socket 18mm Deep Impact Socket 19mm Deep Impact Socket 20mm Deep Impact Socket 21mm Deep Impact Socket 22mm Deep Impact Socket Socket Holder These are high accuracy dial gauges with the pointer giving less than a full turn that can resist rigorous rigorous continuous measurement is high in strenght and is malfunction free due to fastening