Rob Flinn
Well-known member
Junction said:
Yes, I remember this from school, & plenty of lubricant !
what size drill for tapping an M1.6 thread ?
- Thread starter Rob Flinn
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Yes, I remember this from school, & plenty of lubricant !
Yes, anything 2mm or less is a bugger - as I reminded myself again this week. I don't mind the broken tool so much as the pain of getting the broken tap end out of the job.
(For some reason aluminium seems particularly good at snagging small taps, despite it being soft.)
(For some reason aluminium seems particularly good at snagging small taps, despite it being soft.)
And...
The other thing that breaks hand taps is not going in perpendicular to the work. You might want to make an alignment jig from a scrap of metal, with a hole the size of the thread to push up against the surface of the work.
Where possible, I put bigger taps in my lathe (without power) so I can align them.
The other thing that breaks hand taps is not going in perpendicular to the work. You might want to make an alignment jig from a scrap of metal, with a hole the size of the thread to push up against the surface of the work.
Where possible, I put bigger taps in my lathe (without power) so I can align them.
Yes, that's exactly it. Less expensive than I thought.Gold said:
