Drill Sharpeners Compared.

[Jan RaapParticipant @janraap84676]

Thanks Noel and Derek.

I am also glad there was no serious damage or injuries. Lesson learnt with grinding wheels.

I have since tried the point splitting attachment on a drill bit with limited success. There are probably two main reasons.

1. I don’t 100% understand the French instructions translated to English.

2. The markings on my Brierley chuck was worn away when I got it (red and green painted dots). I stamped ‘G’ and ‘R’ next to the pegs but I can’t be 100% sure all pegs are correctly marked up.

I have a Dormer A002 drill which is a split point drill bit which I used as reference (the gold coloured one).

 

This was the result of the first try point splitting the black drill.

 

Clearly the drill was not in the correct orientation/I used the wrong pegs on the chuck.

I tried again and this was the result.

From the side, it looks good.

 

However, from the tip, it does not.

 

A zoomed in image.

I clearly done something wrong.

 

I did try the drill bit (7/16″) and it did cut pretty well in the lathe but I don’t think the point did much at all and probably was not self centering.

 

I need to figure out what went wrong and get all the settings and setup correct before I can confidently split point drill bits.

 

[Jan Raap]

On Jan Raap Said:

So, gather round, fellow tinkerers, as I recount a tale of excitement, questionable decisions, and one spectacularly bad idea.

…

Thanks for sharing.

Jan’s tale is particularly instructive because everything was done right until the very last step, when the desire to get on with it overrode the list of flashing red lights.

Been there, done that!  Satan whispers in my ear: ‘it will be OK Dave…’

Dave

 

 

 

[Neil AParticipant @neila]

I’ve just watched Jan’s video, that made me jump.

Many thanks for sharing it though, it really brings home how dangerous grinding wheels can be.

Glad that you came out unscathed.

Neil

[Author]

Posts