This specialized single piece stepped drill bit was designed
exclusively for drilling concealed holes with the Kreg Deck
Jig. The bit createds an unobtrusive hole on the edge of your
deck boards. The bit comes complete with a rugged Depth
Collar which controls the depth of your drill bit when
drilling. The Depth Collar is secured in place on the bit the
included Allen Wrench. Compatible with standard 1/4" quick
change chucks.