Insize INJO113 1-13mm B16 Precision Keyless Drill Chuck Socket~Spanner~Sets each spanner is built to

each spanner is built to withstand high torque applications without flexing or failure

18 and 19mm

Weight (net)(formers): 12kg

Heat treated precision grounded

Insize INJO113 1-13mm B16 Precision Keyless Drill Chuck Socket~Spanner~Sets each spanner is built toInsize Industrial grade B16 precision keyless drill chucks are manufactured from the highest quality materials to the highest specifications. Insize Precision keyless drill chucks are manufactured to a true running accuracy of <0. 05mm which in comparison is the same size as a human hair follicle. The knurled self tightening feature on these chucks automatically increases gripping pressure proportional to the increase which prevents tool shank