Economy Doweling Jig
The patented automatic self-centering action of these jigs assures accurate center drilling every time, even on round objects. Large steel clamping screw tightens the tool like a vise, with rugged...
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Economy Doweling Jig has five permanent drill hole sizes: 1/4", 5/16", 3/8", 7/16", and 1/2".
• Self Centering
• Has five permanent drill hole sizes
• 2-3/8 wide capacity
• Made from aircraft grade aluminum
• Steel plated for corrosion prevention
Bonus: It is USA made!
Solidly built but slightly flawed
This is a quality, well-built item although there are some quality issues that you may or may not notice. Solid locking at the middle but some play on the far ends. Alignment lines seem to be on-center. The drill bit guides are cut ~1mm wider than the bit which could give a slight play while drilling. Something I saw immediately was the centering bar was off by 1mm on one side. I confirmed this with measuring and then again by closing the jig until one side touched and the other side still retained a gap ~1mm wide. I've contacted the manufacturer to see if there is an adjustment mechanism, otherwise I'll have to remember to place the jig properly on both pieces of wood so as not to have a 2mm overhang.
doweling for center
Haven't used it yet, when it,s 107 degrees outside it zaps you.
exact center every time
easy clamp self centering