Drill Block Pro

Durable 100% Hardened Steel Construction. Included Guide Sizes: 1/8”, 9/64”, 5/32”, 11/64”, 3/16”, 13/64”, 7/32”, 15/64”, 1/4″, 17/64”, 9/32”, 19/64”, 5/16”, 21/64”, 11/32”, 23/64”, 3/8”, 25/64”, 13/32”, 27/64”, 7/16”, 29/64”, 15/32”, 31/64”, & 1/2″.

Durable 100% Hardened Steel Construction. Included Guide Sizes: 1/8”, 9/64”, 5/32”, 11/64”, 3/16”, 13/64”, 7/32”, 15/64”, 1/4″, 17/64”, 9/32”, 19/64”, 5/16”, 21/64”, 11/32”, 23/64”, 3/8”, 25/64”, 13/32”, 27/64”, 7/16”, 29/64”, 15/32”, 31/64”, & 1/2″.