Male fits 4" PVC cleaning but has no groove but 1 3/4 square recess. This hole is too big for the Amazon recommended tool (and the answer to the question).
Continental ContiVikingContact 7 195/65 R15 95T winter
21 Review
High-Quality White Plastic Flush Type Plugs for Industrial Hardware Applications
9 Review
π Enhance your Woodworking Projects with KREG P PIN Solid Wood Pocket Hole Plugs
8 Review
π Marinco 6365CRN Locking Plug 250V: Secure and Reliable Power Connection Solution
9 Review