The Zadik Precision Thumb Rest is designed to be installed using the hole patterns as described HERE. Once your existing hole pattern and screw sized has been determined, You can order the correct thumb rest.
The Zadik Precision Thumb Rest will fit the 3 hole C-MORE pattern (.750 on center) using only the FIRST and THIRD Holes with 5-40 screws. This is suffiect to securely mount our thumb rest.
If using the C_MORE 5 hole pattern you can use all 3 holes on our thumb rest, the 5 hole patern allows you to utilize the first 3 holes, the center holes or the last 3 holes with 5-40 screws. The choice is yours.
If using the TANFOLIO 4 hole pattern ( 10mm / .397 on center) The first 3 holes or last 3 holes can be used with 4MM x .07 screws. The choice is yours.
Pre-Tapped Frames.
Premium 2011 Slide Lock Thumb Rests Built For Hard, Fast, Aggressive Competition!