6 Piece Seal Twistor and Seal Pick Tool Set. Includes: 4 Sizes Seal Twistors Tools, 1 Surface Mountable Twistor Handle Block, and 1 Two Sided Seal Pick & Hook Multitool. Save Your Thumbs and Time with our Seal Twistor Install Tools. Tools will bend the seal to a Kidney Bean shape to help insert and install in the cylinder groove. Small, Medium, Large and Extra Large Twistor Tools work on. 7 Inch 6. 5 Inch seals (20mm 165mm). Seal Pick uses our two favorite seal pick angles: Full Hook - Great for piercing seals and pulling them out of bores. Combination Pick - This slight variation of a 90° pick has two bends. One bend to offset it. 2 Inches and another bend to go out and forward. Great for working your way carefully around seals and leveraging them out. Also includes a plastic block handle holder you can screw into your work bench for help on tough seals.