Specification: <br /><br />Brand new <br /><br /><br />Material: High Speed Steel <br /><br /><br />Size: 3mm /4mm /5mm /6mm /8mm <br /><br /><br />Thread Diameter: 3mm(M3)/4mm(M4)/5mm(M5)/6mm(M6)/8mm(M8) <br /><br /><br />Color: as picture shows <br /><br /><br />Cutting drill bits， professional set<br /><br /><br />Ideal for auto repair and machinery where metric threads are specified <br /><br />Package included: 5pcs x plug tap set<br /><br />Note: <br /><br />Please allow 1-5mm errors due to manual measurement <br /><br /><br />Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same<br /><br /><br /><br />