NJRJ

O'Brien neck joint routing jig, choose dovetail or straight mortise and tenon

$209.62

Robbie O'Brien - influenced by others - came up with this clever neck alignment/routing jig. The jig is simple but elegant as it helps you determine your correct neck angle and then gives you an easy way to transfer the angle to your neck. It enables you to rout the mortise and tenon accurately. Only a small amount of fitting is necessary after the routing is done. The jig comes in an unassembled flatpack, but it is relatively easy to assemble with a minimum of tools and glue. The video/article links (below) fully illustrate how to assemble/use the jig and have many helpful hints for making easy work of this often difficult task.

**Router bits & template guides are not included with this tool. One set of templates is included at no additional cost.

Choose included templates below.

Product Description

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The first template set is included in the price of the tool. Choose the template set you prefer then, if desired, choose additional sets at 10% in the next section. 

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  • Template, mortise and tenon, straight (ref: SPMTS)

    The LMI mortise and tenon templates are designed to be used with the O'Brien Neck Joint Jig, but they can also be used separately. They are manufactured from 1/4" mdf to keep the price reasonable. If you expect to use these templates more than a few times in your shop, we recommend flooding the adjustment slots with cyano-acrylate glue to harden them a bit and prolong the life of the jig.

    $0.00
    Template, mortise and tenon, straight (ref: SPMTS)

    $0.00
  • Template, mortise and tenon, dovetail (ref: SPMTD)

    The LMI mortise and tenon templates are designed to be used with the O'Brien Neck Joint Jig, but they can also be used separately. They are manufactured from 1/4" mdf to keep the price reasonable. If you expect to use these templates more than a few times in your shop, we recommend flooding the adjustment slots with cyano-acrylate glue to harden them a bit and prolong the life of the jig.

    $0.00
    Template, mortise and tenon, dovetail (ref: SPMTD)

    $0.00
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Choose additional templates here. Save 10% by ordering these at the same time you buy the jig. 

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  • Template, mortise and tenon, straight

    The LMI mortise and tenon templates are designed to be used with the O'Brien Neck Joint Jig, but they can also be used separately. They are manufactured from 1/4" mdf to keep the price reasonable. If you expect to use these templates more than a few times in your shop, we recommend flooding the adjustment slots with cyano-acrylate glue to harden them a bit and prolong the life of the jig.

    $32.71
    Template, mortise and tenon, straight (ref: SPMTS)

    Item Details
    $32.71
  • Template, mortise and tenon, dovetail

    The LMI mortise and tenon templates are designed to be used with the O'Brien Neck Joint Jig, but they can also be used separately. They are manufactured from 1/4" mdf to keep the price reasonable. If you expect to use these templates more than a few times in your shop, we recommend flooding the adjustment slots with cyano-acrylate glue to harden them a bit and prolong the life of the jig.

    $32.71
    Template, mortise and tenon, dovetail (ref: SPMTD)

    Item Details
    $32.71

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Product Description

This jig is produced from medium density fiberboard (MDF). 

The SPRB12 straight bit (see below) is recommended for this jig. 

The dimensions of the mortise and tenon prior to fitting them are: 
    • Mortise - 7/8" (.875")
    • Tenon - 15/16" (.938") The tenon is slightly oversized so you can remove just a bit of material and get a perfect fit.

Dovetail mortise and tenon:

Our 3/8" bit SPRB38 works well for hogging out the material on a dovetail–then follow with the 7-degree dovetail bit SP7DTL. These items are recommended below. A small amount of fitting will be necessary after routing to get a perfect fit. 

PLEASE NOTE: The dovetail mortise and tenon templates are different lengths to accommodate the offset created by the template guide when routing the dovetail mortise.

You need to use a 5/8 inch OD router guide bushing (not included) when using these templates. If you don't already own this item, see below to purchase one from LMI.

Router bits & template guide bushing referenced below are not included with this tool. 

Details

Shipping Restrictions - Location
No Restrictions
Oversized - Shipping Restrictions
Oversized
Tool Type or Function
Routing

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Reviews

Grade 

05/24/2019

ot all that

I bought this jig expecting it to be as described on the online video and as shown on the O'Brian online lessons that I purchased. It was not even close to what I expected! It is made out of MDF 3/4 materials that swell, and warp quite easily. I have adjusted, and adjusted, had to take it apart, and back together again, adjusted and had very, very poor results. I cannot get the neck to center on the neck side, the hinge was loose and wobbling, so I had to rework that. Never had it work to where I didn't have to spend time fine tuning either the centering of the cuts and the angle of the neck to get the correct measurement at the bridge. DO NOT BUY THIS UNLESS YOU WANT A LOT OF FRUSTRATION. F - grade

  • 1 out of 1 people found this review useful.
Shop Reply 05/28/2019
John, We are sorry to hear about your frustration. You are welcome to call or email us directly anytime you are having trouble with a product you have purchased from us. We can usually resolve it immediately! That being said, what you encountered with the neck jig is really unusual. This tool has been among our best sellers for years now, with many hundreds sold to customers satisfied with its accuracy, convenience and durability. We are hesitant to change materials (and therefore, increase costs) when the current choices have enjoyed such as a good track record of performance. But we will keep our ears open for any other complaints similar to yours. By the way, in an older video, Robbie does use a plywood version (prototype), but all the other subsequent videos show the MDF version that we sell. -LMI

Write your review

O'Brien neck joint routing jig, choose dovetail or straight mortise and tenon

Robbie O'Brien - influenced by others - came up with this clever neck alignment/routing jig. The jig is simple but elegant as it helps you determine your correct neck angle and then gives you an easy way to transfer the angle to your neck. It enables you to rout the mortise and tenon accurately. Only a small amount of fitting is necessary after the routing is done. The jig comes in an unassembled flatpack, but it is relatively easy to assemble with a minimum of tools and glue. The video/article links (below) fully illustrate how to assemble/use the jig and have many helpful hints for making easy work of this often difficult task.

**Router bits & template guides are not included with this tool. One set of templates is included at no additional cost.

Choose included templates below.

Write your review