[pianotech] pinblock Question

[Terry Farrell]

Or using machine screws!

Terry Farrell

On Sep 1, 2009, at 11:14 PM, Ron Nossaman wrote:

> Gene Nelson wrote:
>> Hi John,
>> For the screws I have learned to use this technique that works ok -  
>> it is a two step process and I like it better than a tapered bit  
>> for the big pin block screws.
>> Measure the shank (may be the wrong terminology - sorry)of the  
>> screw and add 10% and that is the drill size for the threaded part.  
>> Flag the drill for depth and dirll the hole. For the shoulder, use  
>> the same drill size as the shoulder, flag the drill and redrill the  
>> hole to the depth of the shoulder.
>> Add just a dab of Teflon powder to make it easier to  cut the  
>> threads.
>> Gene
>
> I've also found that either running a lag screw (long, with the head  
> cut off, in an electric drill) with a similar thread in as a tap, or  
> just forcing the sucker in cold with an impact driver, works pretty  
> well too.
>
> Depends on where you stand and how you squint.
> Ron N