APPLICATION: Great fixture for squaring rings in the bore prior to setting end gaps; Covers bores from 2-5 inch and we can consistently and accurately measure piston ring end gap FUNCTION: With universal piston ring shaping tool to locate the piston rings, you can easily and accurately complete the piston ring end gap setting; It will enhance your work efficiency Material: Made of high quality materials, this piston ring square tool is highly resistant to corrosion and abrasion for continued use in any professional or home shop environment EASY TO USE: Piston ring square tool is a grab-and-go tool, adjusts to many bore sizes; Simple to use with or without head studs in place; No wrenches or other tools are required NOTES: Places rings 1 inch below the deck to get past head bolt distortion Color: Black Material: Aluminium Package Contents: 1x Piston Ring Squaring Tool