Overall 2 1/2"; Body Dia. .218"; Pilot Dia. .137"; Pilot Length 1/8"; 90deg Shoulder. Use Drill No. 28 for Pilot Hole. Mfg: Brownells
Brownells Fillister 6-48 Sight Screw Counterbore
$25.99
High-Speed Stee; For Popular Sight Screws; Made To Our Exact Spec For Most Sight Base Screws
