A 2mm[1] wide slot would accomodate an M2.5 threaded bar; A 4mm[2] wide slot would accomodate an M5 threaded bar?
[1] A 2mm HSS drill shank sit shappily in the slot - a 2.5mm dill will not.
[2] A 4mm drill shank sits in the slot.
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Why?
It's that screed floor that has a crack down the middle (builder cock up[3]). I have decided to angle grind 30cm long slots perpendicular to the crack acorss the crack at 30cm intervals.
I will then resin A2 stainless threaded bar into these slots using Uzin KR416[4]:
http://www.pwflooring.co.uk/subfloor-preparation/preparation-and-repairs/uzin-kr-416.html
My wall chaser cuts slots with 2mm drill shank clearance, and I can acheive a 4mm slot if I clamp the two diamond discs onto each other[5].
So I'm deciding what size bar to buy...
Cheers,
Tim
[3] Don't get me started on builders. Every bloody time I have to fix something... And I trust me more, so no, not calling them back... Too much hassle.
[4] It's a low viscosity resin designed for the job with screed penetrating characteristics.
[5] Seems dodgey but a test run indicates the chaser is not unhappy. I'm well protected by shielding so the risk is low.
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Tim Watts Personal Blog: http://squiddy.blog.dionic.net/
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Tim Watts Personal Blog: http://squiddy.blog.dionic.net/
http://www.sensorly.com/ Crowd mapping of 2G/3G/4G mobile signal
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