Modular Solvent Trap Drilling Jig 1.375x24 Cup

Material:
7075 aluminum and stainless steel
Diameter of center hole: fits .22 to .45
Note:
The true diameter of the hole is in millimeters rather than inches.
For example 13mm and 33/64" = 13.096875mm
The actual 13mm hole is slightly smaller than 33/64" in diameter

Package include:
1 x aluminum top fixture (thread 1.375X24)
4 x stainless still Bottom Cap