8 pcs Center Drill Bit Set 5/64'' 7/64'' 9/64'' 11/64'' 13/64'' 5mm 1/4'' Backdraft Damper Material Column includes:

Material Column includes:

2 pieces style "B" for turning

Digital temperature and timer control with +- 1 degree accuracy

[Material]: The workbench is composed of several adjustable dovetail aluminum alloys

[DIAGNOSIS]: The engine compression diagnosis tester kit also can check the amount of leakage and locate the leak area in an engine cylinder to help determine the source

8 pcs Center Drill Bit Set 5/64'' 7/64'' 9/64'' 11/64'' 13/64'' 5mm 1/4'' Backdraft Damper Material Column includes:[Accurate positioning]: No displacement, sawdust will be automatically discharged from the top of the holes on both sides, and will not block the drill bit. [Dimensions]: The most common hinge screw sizes are 5 64", 7 64", 9 64", 11 64", 13 64", 5mm, and 1 4". [Automatic discharge]: The wood chips will be automatically discharged from the top of the holes on both sides without blocking the drill bit. From the angle of the hinge, do not miss the center