What is ambry installation shake handshandle reaming drill?

Metal polishing base has been implemented, address: AngYi fishing cross the village ( Wood group for land) Polishing machine number 800, now the relevant matters: - ->
ambry bore hole drilling is to use the shake handshandle installs drilling cutting edge; Drill base hole, reaming drill extended the base hole of the drill bit.

bit: by drilling, cutting edges and chip removal tank ( Spiral or straight flute) Composition, mainly used for machining hole without pre-cast hole, work out the poor hole general cylindricity and roughness.
this is ambry shake handshandle installation of bore hole drill is introduced.