H7789 Mortising Attachment Kit

Upgrade your drill press with this kit and turn it into a mortising machine.

The H7789 Mortising Kit features a quick and easy way to produce mortises with your drill press.

Featuring 1/4", 5/16", 3/8" and 1/2" chisels, this kit will help you produce “old school” mortise and tenon joints.

The H7789, with its variety of interchangeable bushings, will fit just about any drill press for boring precision mortises.

The entire kit includes three two-piece bushings, three split bushings, a cast-iron chisel holder and fence, a hold down assembly, a quill alignment pin, and a carrying case.

Just match your drill press quill diameter to the nearest ID bushing dimension.

Bushing sizes include: 2.945" O.D. x 2.600" I.D., 2.600" O.D. x 2.366" I.D, 2.366" O.D. x 2.170" I.D., 2.600" O.D. x 2.000" I.D., 2.600" O.D. x 1.880" I.D. and 2.600" O.D. x 1.570" I.D.

Not recommended for use with "baby" drill presses.

Note: The quill diameter of the M1039 is 2.825" and requires the G9716 Collar when using the H7789.

The H7789 comes with a 1-year warranty which assures the set is free from factory defects.

The manual was written by our U.S.-based Technical Documentation Department and is packed with useful information.

The Grizzly Customer Service and Tech Support Teams are U.S.-based.

Parts may be available online and shipped from the Grizzly parts warehouse in Springfield, MO.

FITS:

• Grizzly G0485 13" Bench Drill Press
• Grizzly G0491 13" Floor Model Drill Press
• Grizzly G0794 14" Floor Drill Press with Laser and DRO
• Grizzly G7943 14" Heavy-Duty Benchtop Drill Press
• Grizzly G7944 14" Heavy-Duty Floor Drill Press
• Grizzly G7947 17" Floor Drill Press (also requires G9716)
• Shop Fox W1680 17" Floor Model Drill Press
• Grizzly G7948 20" Floor Drill Press (also requires G9716)
• Shop Fox M1039 20" Floor Drill Press (also requires G9716)
• Grizzly T33901 14" Benchtop Drill Press
• Grizzly T33902 14" Floor Drill Press
• Grizzly T33903 17" Floor Drill Press
• Grizzly T33904 20" Floor Drill Press
• Grizzly T33959 15" Benchtop Variable-Speed Drill Press
• Grizzly T33960 15" Floor Variable-Speed Drill Press
• Grizzly T33961 17" Floor Variable-Speed Drill Press
• Grizzly T33962 16" Benchtop Variable-Speed Drill Press
• Delta 11-990
• Delta 14-070
• Delta 17-900
• Delta 11-090
• Jet JDP-14MF
• Jet JDP-17M
• Jet JDP-17MF

Note: Not recommended for use with 8" drill presses.