3-26 O Ring For ToolHolder Suitable For rotary hammer Machine in Dongcheng / DCK /Powertex / DCA / All Imported 3-26 Model
Brand : Generic
Item Dimension : 19.8*2.1
Suitable For : Dongcheng / DCA / DCK / Xtrapower / Powertex / All Imported 3-26 Model
The O Ring was helps to air tight movement for Toolholder.
so please read the user manual to avoid that.