VIM DPW1315 – Extra Long Drain Plug Wrench Offset Box Head 13mm x 15mm. MPN: VIMDPW1315 or VIM DPW1315. Drain Plug Wrench, XL, Offset Box head 13mm X 15mm. VIMDPW1315 – 13mm x 15mm Combination Wrench XL Offset Box Head.