คุณลักษณะ

• Since it is a manual type, it does not need power.
• Holes (φ10.5) for fittings can be drilled in the appropriate cable rack and metal duct.
• Since it can be inserted from the top surface of the master girder, it can also be drilled in the cable rack after construction.
• The handle is removable, so you can use it even if there are obstacles near the cable rack drilling.