Kreg Jig K4 Master System Pocket Hole Guide The Do-It-Yourself Kreg Jig with bonus accessories. Removable drill guide for benchtop and portable use. Dust-collection shroud collects wood chips. Material support stop for consistently repeating hole spacings. 9/16 , 7/8 , 1-7/16 drill guide spacings. Includes Kreg Jig K4, Kreg face clamp, portable base, drill guide spacer, material support stop, dust-collection attachment, 3/8 In. stepped drill bit, 6 In. square driver, 3 In. square driver, starter Kreg screw set, pocket-hole plus set, owner's manual. Body Material Glass-Filled Nylon, Drill Guides 3 3/8 Dia Standard, Clamp Type Toggle Clamp, Face Clamp, For Use With 1/2 In. to 1-1/2 In. Thick Materials, Pkg Qty 1, Package Type Box Warning This product can expose you to chemicals including Acrylonitrile and other chemicals which is known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.