SAE UNC UNF Threads Tap & Drill Chart Toolbox eBay Drill bit
Drill Size For 1/4-20 Form Tap. Web straight hole size for 75% thread: This size is recommended for 1/4″.
Web straight hole size for 75% thread: This size is recommended for 1/4″.
This size is recommended for 1/4″. Web straight hole size for 75% thread: This size is recommended for 1/4″.