Wilton 14876 P-6.5, Prism Jaw Cap, 6-1/2-Inch Jaw Width, 2 -Pack Model P - Prism Magnefix Jaw Caps Jaw Construction Includes A 120-Degree Horizontal V-Groove, Three Vertical V-Grooves And A 90-Degree Groove For Marking Out And Center Punching Ideal For Light Tapping And Thread Cutting