Automatic lock measure tape(401101)

Material:50# carbon steel with nylon coating,10.5dmm thickness,polish face,nylon coating , 65mm spring,ABS+PVC Case+sleeve,Automatic lock
size:10ft*16mm/ 16ft*19mm/33ft*25mm/25ft, 7.5m*25mm
Features:
1.Nylon coated cover ,10 times abrasive resistance than normal tape.
2.Slipping tape hook can accurately measure the outside and inside diameters.
3.PVC cover combines with ABS plastic,strong and crush resistant.
4.50# hig-carbon steel tape combines with 65# Mn spring,which makes the measure tape more retractile.
5.Extend-retracting hook design keeping same measuring precision measure with inside or outside hook head.
6.Automatic lock design more retractileable,it can be locked automaticly in any stretched place.