Check the listing for details. 3D Printed Lock Cylinder Plug Holder 0.40" Re-Keying Lock Smith Tool for Schlage. Condition: New. Listed at 10.74 USD. This is a 3D Printed Lock Cylinder Plug Holder that perfectly holds 0.40" plugs - accommodates all Schlge full size plugs, including plugs with side bars. 3D Printed from a durable composite blend.