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Alembic Club » Alembic Basses & Guitars » Archive: 2007 » Archive through July 18, 2007 » F1-X chassis screw size? « Previous Next »

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Username: phillybill

Post Number: 4
Registered: 5-2006
Posted on Thursday, May 31, 2007 - 9:02 pm:   Edit Post

Anyone tell me what is the tool to remove
the chassis screws? Mine takes a special
tool - what is it and what size?
Advanced Member
Username: crgaston

Post Number: 400
Registered: 11-2005
Posted on Friday, June 01, 2007 - 10:06 am:   Edit Post

It's an allen wrench on mine...not sure the size, but it's one of the standard ones, and English (not metric) if I remember correctly. I've got a little multi-size set from the hardware store and one of them fits it. It's a handy tool to have in your gig bag, and doesn't get lost as easily as an individual wrench.
Senior Member
Username: bsee

Post Number: 1616
Registered: 3-2004
Posted on Friday, June 01, 2007 - 10:13 am:   Edit Post

Mine are very tiny screws, so no help here.
Username: peter_jonas

Post Number: 50
Registered: 11-2002
Posted on Friday, June 08, 2007 - 5:18 am:   Edit Post

It is an Allen (hexagonal) key. It is an imperial (inch) size key of 5/64". Metric people do not dispair. Five sixty fourth inches (5/64") equals 1.98 mm, and a 2.0 mm Allen key will fit perfectly.

I note that the screws in later production equipment (they are all the same in the F-1X, F-2B, SF-2 and DS-5R) are mede of softer steel than those in older gear, and if you are not careful, after a few loosening and tightening of the screw it is easy to strip the hexagonal socket. It can then be difficult to remove the screw. It can also be difficult to source a replacement, although I am sure Alembic would help you out.


Peter Jonas
Username: mica

Post Number: 4650
Registered: 6-2000
Posted on Friday, June 08, 2007 - 7:18 pm:   Edit Post

If you use a metric driver, since it is slightly larger, you need to be aware of erosion as you describe. It is best to use the proper tool to make the adjustments if at all possible.

Hardware manufacturers used to deliver the spec closer to the hard end in their quoted tolerances. These days, the same hardware is likely to be at the lower hardness range of their tolerances. The way of the world sometimes.

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