Torx screw

[lensman57]

Hi,

I want to make a small face mill-fly cutter with 06 02 04 ccmt carbide bits. How can I set these with a torx screw ? Is there a special tap for these screws or the metric tap could do the job.
Many thanks for any advice.

Regards,

A.G

 

[Tin Falcon]

http://www.wihatools.com/Marketing/torxspec.htm

Acording to my brief search torx scews are american number sizes like 2-56 torx plus can be american or metric sizes.
tin

 

[lensman57]

Hi Tin,

Thank you for your reply, the ccmt inserts that I have are all 06 02, the 02 refers to the size of the torx screw in mm I believe. Would I be able to use a metric tap to make the hole or is there a special tap for these screws? I can get American tap sizes such as 2 56 and so on here in the UK as well.

Regards,

A.G

 

[hitandmissman]

Torx I believe just relates to the head design of the screw, such as philips or slotted, etc. the threaded part would be a standard thread be it metric or inch.

 

[rustyknife]

yes torx is just the head design. threads are identical to regular bolts

 

[Jasonb]

The 02 does not refer to the thread, it referes to the thickness of the insert so don't assume the size is M2.

J

 

[lensman57]

Hi,

Thanks to all with your replies. I feel a lot better now that I don't have to hunt down a mystery tap.

Regards,

A.G

 

[xpylonracer]

Adding to what jasonb said the 04 at the end is the insert nose radius in mm (0.04mm)

 

[mzetati]

The commercial insert holders and mills I have use Torx screws ranging from M3 to M4, including the uncommon M3.5.
Before scrounging the commericial ones, I had made some holders using commercial M3 and M4 socket head screws I had in the drawers, having tapered the bottom of the head.
Definitely not the best choice, but I quit using them before replacing the screws: the torx screws they sell for holding inserts are probably much better quality, but sure they come at a price.
The diameter of the hole into the insert should tell You what screw thread You should use.

Marcello

 

[lensman57]

The commercial insert holders and mills I have use Torx screws ranging from M3 to M4, including the uncommon M3.5.
Before scrounging the commericial ones, I had made some holders using commercial M3 and M4 socket head screws I had in the drawers, having tapered the bottom of the head.
Definitely not the best choice, but I quit using them before replacing the screws: the torx screws they sell for holding inserts are probably much better quality, but sure they come at a price.
The diameter of the hole into the insert should tell You what screw thread You should use.

Marcello

Hi Marcello,

I agree with you regarding the silly prices of these screws. I bought some spare ones ( claimed to be swiss made) just in case I lost or damaged the ones on the tool, the price was nearly 10% of the price of the tool and the inserts, but they do hold the bit well.

Regards,

A.G

 

[Ned Ludd]

Hi Guys,
M3.5 is not so unusual, it is I believe, used quite a lot in mains electrical outlets here in the good(?) old UK, but don't use any of them to hold inserts as they are brass.
I bought some M3.5 Torx insert screws from Jenny at JB Cutting for £1.50 each if memory serves. Most UK modelling exhibition goers will know who I mean but that is not much use for you poor foreigners.
Ned

 

[mzetati]

but that is not much use for you poor foreigners.

"Fog in the Channel. Continent cut off!"

Marcello

 

[Blogwitch]

If you can wait, these people can supply you at much lower prices than elsewhere.

http://www.ebay.co.uk/sch/Metalwork...faultDomain_0&hash=item19d31357ad&_ssn=zjwhsd


John