It is a security bit used on screws such as are used on toilet stalls. Some 
appliance makers are going to them so that your service would not be
Able to be done by the average owner. I have a 115 or so bit set from doing air 
compressor service.

Sent from my Verizon Wireless 4G LTE smartphone

-------- Original message --------
From: Roger H Phebey <r...@woodworkersworkshop.co.uk> 
Date: 07/25/2013  14:22  (GMT-05:00) 
To: legacy-ornamental-mills@googlegroups.com 
Subject: Re: "Mystery" (screw) driver bit Challenge 
 
Hi Mac
I think that bit is used for installing screws that are not meant to be  
removed, a security feature.
Who makes it I do not know.
Regards
Roger
 
From: Va Oak
Sent: Thursday, July 25, 2013 7:06 PM
To: legacy-ornamental-mills@googlegroups.com
Subject: "Mystery" (screw) driver bit Challenge
 
Greetings,

There have been few & far between postings of late to the Group's pages.  
Consequently, I thought I would tap into the breadth of brain power &  
knowledge within the Group in order to shed light onto a most unusual (screw) 
driver bit/tip that I have come to possess.  Included are 4 photos showing the 
tip - notice the unusual grooves in it.  The end seems to be about the size of 
a #3 square tip or Roberts. (definitely not a Phillips or PosiDrive).  There is 
a marking on one of the "flats" of the bit: "JBW2-4".  The bit's entire length 
is just shy of 2" - and the base is made to fit the standard 1/4" hex driver 
collet. 

My questions:  What kind of fastener/screw is it used on?  I have NEVER seen a 
driver bit like this.  

Does anyone have any idea as to who manufactured it?  What does JWB2-4 mean?

Thanks for the help.

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