# Dowelmax

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{{Short description|Dowelling jig}}

thumb|300px|right|The Dowelmax Jig with distance gauge bar
The '''Dowelmax''' is a loose tenon [dowel](/source/dowel)ling jig manufactured by the O.M.S. Tool company in [Canada](/source/Canada). The manufacturer claims that the small [manufacturing tolerances](/source/Engineering_tolerance) of {{convert|0.026|mm|in}} for the [aluminium](/source/aluminium), [brass](/source/brass) and [steel](/source/steel) components of the jig ensure accuracy and repeatability, but the precision manufacturing adds to the unit's cost.

The tool allows the placement of five dowels in one pass. A distance gauge bar provided with the jig allows accurate spacing between sets of dowels.

==Joint strength==
Tests by both the manufacturer,<ref name="dmtest">{{Cite web|url=http://www.dowelmax.com/jointstrength.html|title=Destructive Tests Comparing Biscuit Joints, Mortise and Tenon Joints, and Multiple Dowel Joints made with Dowelmax|accessdate=2008-08-01|publisher=O.M.S Tool Company}}</ref> and [''Wood'' magazine](/source/Wood_(magazine)) (in 2007),<ref name="woodmag">{{Cite web|url=http://www.woodstore.net/is17ju201.html|title=What's what in loose-tenon tools|accessdate=2008-08-01|magazine=Wood|date=2007-07-01|issue=177}}</ref> claim to show that dowel joints made with the Dowelmax are stronger than most other woodworking joints tested. In addition, a 2011 review<ref name="dmtest2011">{{Cite web|url=http://toolreviews.woodmagazine.com/power-tools/joinery-tools-jigs/doweling-mortising-jigs/discussions/review?id=102|title=Review-A-Tool Dowelmax Doweling Jig|accessdate=2014-10-07|magazine=Wood|archive-url=https://web.archive.org/web/20141010212457/http://toolreviews.woodmagazine.com/power-tools/joinery-tools-jigs/doweling-mortising-jigs/discussions/review?id=102|archive-date=2014-10-10|url-status=dead}}</ref> by ''Wood'' magazine rated Dowelmax as a superior dowel joinery tool, describing Dowelmax as "the best dowelling jig ever made".

===Independent test===
{{col-begin|width=auto}}
{{col-break}}
{| class="wikitable" style="font-size:90%"
|+ Shear Test
|-
| style="padding-right:20px;" |[Mortise and tenon](/source/Mortise_and_tenon) || {{convert|1017|psi|kPa|abbr=on}}
|-
| style="background-color:#fae8b7;"| Dowelmax || {{convert|609|psi|kPa|abbr=on}}
|-
| Beadlock<ref>The Beadlock is a loose tenon joinery system made by Rockler Companies, Inc.[http://www.beadlock.com/]</ref> || {{convert|541|psi|kPa|abbr=on}}
|-
| [Domino](/source/Domino_jointer) || {{convert|464|psi|kPa|abbr=on}}
|-
| [Biscuits](/source/Biscuit_joiner) || {{convert|187|psi|kPa|abbr=on}}
|}
{{col-break|gap=1em}}
{| class="wikitable" style="font-size:90%"
|+ Pull-apart Test
|-
| style="padding-right:20px;" |[Mortise and tenon](/source/Mortise_and_tenon) || {{convert|2525|psi|kPa|abbr=on}}
|-
| style="background-color:#fae8b7;"| Dowelmax || {{convert|1866|psi|kPa|abbr=on}}
|-
| [Domino](/source/Domino_jointer) || {{convert|1486|psi|kPa|abbr=on}}
|-
| Beadlock || {{convert|1170|psi|kPa|abbr=on}}
|-
| [Biscuits](/source/Biscuit_joiner) || {{convert|766|psi|kPa|abbr=on}}
|}
{{col-end}}
===Hydraulic comparison strength testing by manufacturer===
{| class="wikitable" style="font-size:90%"
|+ Shear Test
|-
|style="background-color:#fae8b7; padding-right:20px"|Multiple Dowel (Dowelmax) || {{convert|890|psi|kPa|abbr=on}}
|-
|Routed Mortise & Tenon || {{convert|680|psi|kPa|abbr=on}}
|-
|Double [Domino](/source/Domino_jointer) || {{convert|540|psi|kPa|abbr=on}}
|-
|Square Mortise & Tenon || {{convert|480|psi|kPa|abbr=on}}
|-
|[Pocket Hole](/source/Pocket_hole_joinery) (5 Screws) || {{convert|420|psi|kPa|abbr=on}}
|-
|#20 Biscuit || {{convert|285|psi|kPa|abbr=on}}
|}

==References==
{{reflist}}

*

{{Woodworking}}

Category:Woodworking hand tools
Category:Woodworking
Category:Joinery

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Adapted from the Wikipedia article [Dowelmax](https://en.wikipedia.org/wiki/Dowelmax) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Dowelmax?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.