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drilling
Drilling is a cutting process that uses a drill bit to cut a hole of circular cross-section in solid materials. The drill bit is usually a rotary cutting tool, often multi-point. The bit is pressed against the work-piece and rotated at rates from hundreds to thousands of revolutions per minute. This forces the cutting edge against the work-piece, cutting off chips (swarf) from the hole as it is drilled.
In rock drilling, the hole is usually not made through a circular cutting motion, though the bit is usually rotated. Instead, the hole is usually made by hammering a drill bit into the hole with quickly repeated short movements. The hammering action can be performed from outside the hole (top-hammer drill) or within the hole (down-the-hole drill, DTH). Drills used for horizontal drilling are called drifter drills.
In rare cases, specially-shaped bits are used to cut holes of non-circular cross-section; a square cross-section is possible.
hi all
i need some help and advice
i am tiling around 2 shower pipe fittings. as the measurements were intricate i was practicing on off cuts and trying to create a template. I've noticed when i drill holes into the tiles sometimes they would crack. i don't use any pressure or drill too fast...
I checked where to fit my essex flanges for the recirc pump after looking into the water tank.
The hole cutter I have is in the pic. Are the teeth too coarse for thin copper?
Anyone cut into a hot water copper tank? What sort of hole cutter did you use?
Thanks.
I'll be fitting a couple of Essex fl@anges to my HW tank soon. required hole is 38mm.
I know these tanks are quite thin and can rip easily so what's the best way to drill them with a hole cutter?
Hi I’m refurbishing an old cottage with some about 450mm thk flint (with brick banding) walls. As part of it I’m reforming and partially repositioning the bathroom with means I need to form new holes thro the flint walls for the bath and whb wastes. Has anybody got any advice for the best way to...
Good afternoon,
im putting in a concealed shower unit into a cavity wall. It’s going to need 2 x 25mm holes for hot and cold supply and a 20mm hole for the shower head feed.
every joistdrilling and notching advice I can see on the net is about drilling horizontally. But whatif you need to...
Anyone had any experience with Cornish stone wall 470mm. I need to cut holes in it for a new kitchen waste and an extractor fan. Struggled just getting a 15mm pipe through as stone kept falling inside and blocking the hole. Any tips or advice would be greatly appreciated.
Hi
I have a concealed thermostatic mixer shower with three control knobs. The one that changes the temperature of the water (middle knob) just slips around and around and having removed it I can see there is no grip on the spindle and it's just created a groove all around. I'm aiming to drill...
Hello, is it unheard of to install a mechanical boss onto a soil pipe joint? The only part of the soil pipe that is above the line of the plasterboard is the joint and I was wondering if anyone has attempted to drill into it? I can’t find any answers online so I’ll assume it’s a stupid...
Hi folks, I've got an outside tap to fit on Monday. It's a sandstone building. Anyone know the right size and type of drill bit. I have a standard 18mm 600 to 800mm in length masonry bit which I use with a Makita 18v hammer drill. Should I bring a transformer/generator and use a core gun with...
Hi clever people
I'm a first time home owner and inexperienced DIY'er so please bear with me if I ask something obvious or stupid.
I have an alcove next to an electric shower in our en suite that is crying out for some shelves. The shower itself is mounted on the opposite wall to where I'd...
i no longer need this anyone interested in buying of me. for inserting pressure test nipples into steel pipe. mesaage me if interested i am in th ewarrington area.
open to offers for this Abbirko drilling and tapping set for inserting test nipples into steel pipe. open to offers will suit commercial gas engineers. i am manchester/warrington based
item no longer needed
If you looking for a tool to drill through joists I used one of these recently on a house I 1st fixed... 51mm TCT holesaw, very fast & very easy to remove cut timber.
Used the arbor from my bi-metal holesaw kit.
(As you know there's rule & regs as to cutting/drilling joists so keep within...
In need of a new drill after my friend has completely ruined my dewalt, burnt out on motor side and wouldn't be worth repairing my guy who fixes them said!
Looking at. Macrist DDM1 but it has some bad reviews, anyone have one??
Here they are!
Totally refreshed for this year. We have given a makeover to all of the BOXSET range. All options are now presented in smart easy use cases.
Do you need to drill holes into very hard porcelain tiles? ********* are the tile drilling specialists
THE ESSENTIAL This box set...
365drills
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hi, got to install a new shower next week. to cover up the hole that will be left, they asked if i could put a piece of mirrored stainless in, have the shower attached to it, pipes coming through,ect.
i thought this was a great idea, until i reralisec drilling a small hole can be a,err...
I have purchased a VP Vermont Close Coupled Toilet where the pan conceals the water supply pipe behind the pan and butt up against the wall. The water supply pipe, and waste pipe are at a distance where the water supply pipe cannot concealed behind the pan, so my thoughts are to drill a hole in...
mike912
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