Skinner 6 4-Jaw Chuck #4206 1-1/2-8 TPI, South Bend Machinist Lathe Tool Posted on February 24, 2025 by admin in skinner Skinner 6″ 4-Jaw Chuck #4206 1-1/2″-8 TPI, South Bend Machinist Lathe Tool. In good condition has very slight surface rust, no chuck key. admin admin wrote 4713 posts