55260 Carbide Tipped 82 Degree Countersink

 3/8 Dia x 49 Deg x 1/4 Quick Release Hex Shank

 for Wood Screw #4

(a°) Angle	49°
(D) Diameter	3/8
(d) Shank	1/4
Overall Length (L)	2-1/8
Wood Screw Size	#4
D1	5/64
Replacement Drill	630-001