MadModder

Gallery, Projects and General => How do I?? => Topic started by: MadNick on February 17, 2012, 03:55:06 AM

Title: Spiral flute tap question
Post by: MadNick on February 17, 2012, 03:55:06 AM

Morning,

I managed to pick up a brand new 5/16 UNC spiral flute tap for pennies. It doesnt feel like its made of steel though, looks more like a ceramic finish to it.

My question is, would this be ok to use as a plug tap in stainless steel please?

Nick

Title: Re: Spiral flute tap question
Post by: DMIOM on February 17, 2012, 04:20:16 AM

The surface can be misleading with all sorts of coatings - however is there a coloured band on it?  if so, what make is it?

Yellow is usually general purpose and Red for high tensile; BUT then depending on maker, typical coding is Green = stainless and Blue = aluminium (however Guhring have Blue for stainless !)

Dave

Title: Re: Spiral flute tap question
Post by: MadNick on February 17, 2012, 05:02:52 AM

My mistake - it is HSS, worked like a treat :)

Nick

Title: Re: Spiral flute tap question
Post by: Fergus OMore on February 17, 2012, 06:08:39 AM

So you found your magnet? 

 :lol:

Regards from the Old Firm

Title: Re: Spiral flute tap question
Post by: MadNick on February 17, 2012, 09:30:30 AM

Quote from: Fergus OMore on February 17, 2012, 06:08:39 AM

So you found your magnet? 

No, my eyesight...

Nick

Title: Re: Spiral flute tap question
Post by: sparky961 on February 17, 2012, 12:21:08 PM

I recently compared a few "colour band" charts and there seems to be very little standardization there.  WATCH OUT!

-Sparky

Title: Re: Spiral flute tap question
Post by: Paddy OFernichur on February 19, 2012, 09:32:00 AM

Just curious, but isn't there some laser-marked letters, numbers, and or logo's on the shank of the tap?