How does this collet work?

How does this collet work?

This topic has 10 replies, 6 voices, and was last updated 29 May 2019 at 22:17 by Ian P.

Viewing 11 posts - 1 through 11 (of 11 total)

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22 May 2019 at 20:31 #410470
Ian P
Participant
@ianp
I dont have anything in my workshop that takes Morse 1 but I keep moving this item from drawer to drawer and every time wonder what it would be used for.

An 8.50mm drill shank is a perfect fit but how would it be tightened up?

Ian P
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22 May 2019 at 20:31 #26625
Ian P
Participant
@ianp
8.5mm to MT1 with tang
22 May 2019 at 20:45 #410474
Ian McVickers
Participant
@ianmcvickers56553
It's for holding straight shank drill in a taper socket. Does it not lock onto the drill when gently tapped into the MT socket?
22 May 2019 at 21:26 #410482
HOWARDT
Participant
@howardt
It is a Morse taper split sleeve drill driver. The drill to suit the driver is parallel shank with a small pair of flats on the end. Used in production setups for small drills, cheaper to use with replaceable straight shank drill rather than morse taper. Used to use these quite a lot on multi spindle drill heads with smaller, sub 10mm drills.
22 May 2019 at 21:35 #410484
Ian P
Participant
@ianp
Ah, I understand now. I did not realise that the drill would have driving flats and could not see how the collet could be tightened other than by hitting the exposed edge which seems a bit crude.

If anyone seeing this thread has a use for it and pays postage or collects they can have it.

Ian P
24 May 2019 at 00:48 #410677
John Reese
Participant
@johnreese12848
A taper length drill in that drill driver is intended to have the same overall length as a taper shank drill.
29 May 2019 at 21:20 #411578
DC31k
Participant
@dc31k
What does the writing on it say?

I have a few of these and they are all for letter-size drills. If you squint at the picture, it looks like an 'R' on it, which would be closest to 8.5mm (but could equally be an '8&#39.
29 May 2019 at 21:40 #411581
Ian P
Participant
@ianp
No writing on this one, but it slips on an 8.5mm drill shank perfectly.

Ian P
29 May 2019 at 22:00 #411586
Michael Gilligan
Participant
@michaelgilligan61133
MIchaelG.
29 May 2019 at 22:15 #411588
HOWARDT
Participant
@howardt
A link to Google books for those who need to read further.

**LINK**
29 May 2019 at 22:17 #411589
Ian P
Participant
@ianp
Posted by Michael Gilligan on 29/05/2019 22:00:51:

MIchaelG.

You've got better eyesight than me, or maybe used a microscope!

I will examine it tomorrow to see why I missed it.

Ian P
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