Reliable Diesel Engineers [P] Ltd. Supplies Two Post Frame Open Rack with Vertical Mounting Hole. Reliable Diesel Engineers [P] Ltd. Has been awarded ISO 9001:2000 certifications. Two Post Frame Open Rack with Vertical Mounting Hole is made of 2.0 mm steel. Two Post Frame Open Rack with Vertical Mounting Hole can be bayed with the help of baying kit. The top and side frames are provided with cable entry cut outs which allow effective routing of cables. These two pillar racks are basically used where security of the equipment is not a primary concern as to a secure location has already been provided where unauthorized access can be restricted. All sides` access is also one of the major benefits which is one of the primary needs for using open racks.