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Overview

T27577 Picture Framing Machine / Underpinner

Make picture frames with precision and ease.

The T27577 Picture Framing Machine, also known as a Manual Underpinner or V-nailer, is perfect for anyone looking to quickly and accurately produce high-quality, professional picture frames.

With its small footprint, this framing machine can easily fit into tight spaces, yet also offer big-time versatility. The 13-3/4" W x 13-3/4" D extension tables support long picture frame mouldings.

Having the option of working from the backside of the machine is a gamechanger. The dual foot pedals allow for front or rear operation. The right foot pedal operates the front clamp to secure the frame. The left foot pedal inserts V-nails.

The T27577 accommodates 90°, 120° and 135° fence inserts for making up 4-, 6-, or 8-sided frames. It accepts 5, 7, 10, 12 and 15mm long universal-type V-nails. Stacked V-nails may be used to reinforce irregular frame thicknesses. A V-nail depth indicator light illuminates when a V-nail reaches proper depth.

Like all Grizzly woodworking machines, the T27577 comes with a 1-year warranty which covers parts and assures the unit is free from factory defects.

The T27577 manual was written by our U.S. based Technical Documentation Department and is packed with useful information. The complete and easy to read manual makes it easier to assemble and maintain your framing machine.

The Grizzly Customer Service and Technical Support Teams are U.S. based. Parts and accessories for the framing machine are available on-line and shipped from the Grizzly parts warehouse in Springfield, MO.

SPECIFICATIONS:

  • V-nail channel capacity: 350 V-nails
  • V-nail sizes: 5, 7, 10, 12, 15mm
  • Frame/moulding width range: 1/4"–3"
  • Frame/moulding thickness range: 1/4"–3-1/2"
  • Floor to table height: 37-1/2"
  • Extension tables: 13-3/4" W x 13-3/4" D
  • Overall size: 28-1/2" W x 48-1/2" H x 30" D
  • Footprint: 15" W x 18" D
  • Approximate shipping weight: 121 lbs.
FEATURES:
  • Dual foot pedals for front or rear operation
  • 90°, 120° and 135° fence inserts for 4-, 6- and 8-sided frames
  • Indicator light for completed V-nailing (9V battery required)
  • Spring-assisted loading mechanism with nylon pull-cord for easy V-nail loading
  • Rubber-tipped top clamp with simple push-button vertical adjustment
  • Powder-coated steel base and extension tables; cast-iron main table
Reviews

2 Customer Reviews (4.5 out of 5 stars) : Sign in to write a review

Anonymous Reviewer
Easy to use once you get the hang of it 12/24/2019 5:19:50 PM

I'm new to making picture frames so this was my first experience with an underpinner. Some of the grief I experienced was my inexperience, but that was compounded by an error in the instruction manual. The manual says to put the v nails in with the glue side "down". As it turns out, that orients the v nail with the blunt edge facing up. I'm using soft wood (pine) which requires a v nail with a sharp edge that will cut the wood grain. Thinking I had ordered the wrong v nails, I ordered some more from someplace else as the ones on the Grizzly site gave no indication that they were for either hard or soft wood. When the new v nails came in I noticed the sharp edge was on the glue side (the glue was clear on the new ones so the edge was visible while the glue edge on the Grizzly v nails was brown and obscured the sharp edge) so I put them in glue side up and they worked as they should. Once I discovered that the Grizzly v nails worked with the glue side up I tried them and they worked well too. Because I hadn't used an underpinner before, I didn't realize that the pressure of the pad above the stock was directly related to the machine's ability to drive the v nail to the desired depth. Took some doing for me to find that sweet spot. I think the pressure pads are a weak spot. The round one kept popping off of the metal piece it's screwed into and I think that's because the part that screws into the metal is rubber. A little superglue seems to have fixed that issue. We'll see how it holds up over time. I like the machine and think it will help speed up the process of making the frames. Having the option of working from the back side of the machine is a huge plus if you're making bigger frames, (I make a lot of 36x24) even at 6' 3" with long legs, it would be difficult at best to assemble the two halves from the front. I'm giving it 4 stars primarily for the "glue side down" reference in the manual. If it weren't for that, my initial experience and frustration level would have been a lot less. If you're looking for a well made manual underpinner that's sturdy and should last for years, then this one is worth consideration. I'm glad I purchased it.

Anonymous Reviewer
07/20/2017 7:17:36 PM

I am starting a mobile picture framing business and this exactly what I've been looking for. It allows me to operate it from both sides, which is a plus. To go with this, you need to build a mat cutter and a graduated miter saw for the rabbits in picture frames.