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Insert Nut Advice

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9fingers

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I suggest you experiment to find the optimum tapping drill to suit your timber to get a good hold and a flush fit.
Use a lip and spur bit for a good clean hole.

hth

Bob
 

AndyT

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In my experience they take quite a torque once nearly seated - so it's worth buying the extra long Allen keys. I wouldn't recommend trying to use a power tool on them.
 

pjm699

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Generally I use 7-7.5mm drill depending on material density - I would recomend a T-bar allen key to put them in as then you are pushing square into the material (which is harder to do with the L-shaped keys)
Drill a very shallow recess for the head with a small forstner bit (select the inserts carefully as they are not always concentric)
I find that in softer materials you need to lean on the key quite hard as you screw the insert in or the rough thread can act like an auger. P
 
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