Safe and simple to operate. Wedge type tool posts are precision engineered to ensure repetitive accuracy. Rugged - no chatter or vibration. (1) #400WS Tool Post & (4) Holders (#401, 402, 404, & 407). Base Nut May Require Some Machining To Fit Your Lathe. Powered by Solid Commerce The All-in-One Listing, Inventory & Order Management Solution. The item "Forged Tough 400WS 14- 20 Wedge 5 Piece Quick Change Tool Post Set" is in sale since Thursday, May 24, 2018. This item is in the category "Business & Industrial\CNC, Metalworking & Manufacturing\Workholding & ...