THIS WILL HOLD .090-.500 PINS TO USE AS GO/NOGO FOR CHECKING HOLE SIZES
THIS REQUIRES A ¼-20 CAP SCREW AND A ¼-20 BRASS RUTHEX THREADED INSERTLINK TO INSERT
https://www.amazon.com/ruthex-Thread-Insert-20x12-7-Ultrasound/dp/B09MTS6ZZQ/ref=sr_1_1_sspa?crid=9BAWPEPS9T6C&dib=eyJ2IjoiMSJ9.-Lb1a-jDpNsCUMolQlWnX6JnkWlHR53kOWd89MdQZVdsreGGp1NTTDwLhG7RiyG7ErKT1TE9KRB9rlFflbhbRXPOaMnXZSZRdSrV6nijfvTTwwyqvtJyxQnPYiXROzJmdvK0XrZhwRaFvYMDxoh7IbfgEavjR1LatqQkeXwtriJK47_dHWYgpm5oY8XaPRjvT6U-PnyLU2PTLglmBGlI6pl_yhf-NR3pC247xWYuWjA.c7AbPUEbCeJ9-85to41h1LqeOrBRHW8iWJmzG-ZXuJ0&dib_tag=se&keywords=1%2F4-20%2BRUTHEX&qid=1736118316&sprefix=1%2F4-20%2Bruthex%2B%2Caps%2C208&sr=8-1-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9hdGY&th=1
The author marked this model as their own original creation.