use those, will drill faster ,like a knife through butter .
Saw a lad snap hisbwrist with a Auger bit when i was an apprentice, traumatised for life.
Sharp spade bit and a dewalt combi with 6ah battery minces anything.
Sharp spade bit and a dewalt combi with 6ah battery minces anything.
Impact drills are not designed for timber drilling, use a drill with a speed suitable for hole diameter, small holes fast, big hole slower. Flat bits are cheap and work well unless you are boring deep holes when auger bits are more suitable. The multi flute auger bits require a high torque drill due to increased friction of the cutting flutes over a flat bit they are also much less forgiving of clipping screws or nails in use.
These work well with an impact driver but with a standard drill they tend to stop just before they exit the joist as the screw tip protrudes and is unable to pull the blade into the wood.
use those, will drill faster ,like a knife through butter .
Blunt ones certainly, sharp ones.. no problem.
I use a variety of different Irwin flute bits and my Dewalt dcd996 Combi. Eats everything I throw at it.
The flute bits that are designed to withstand hitting nails are OK I use these when appropriate.
I use the impact driver and stubby flute bits when space is tight.
The Irwin extension bars designed for these bits are pretty damned good too.
I find that the slightest push is all that is needed to finish the last mm off using a combi drill.
when drilling through timber you must pull back to clear the drill bit and it go through quicker and will not stop until you are at the other side of the wood .
I remember going to a new build (being built by a gang of Bulgarian builders). They were using the wooden FinnJoist(?) I-beams. These are made with a number of push out holes in the beams.I beams everywhere
This makes it a doddle, as a pop with a hammer on each joist, and there's your cable run.
HOWEVER
the joists are not symmetrical and
the muppet builders had not set out the beams so all the holes aligned. Not a problem for me as the cables can zig and zag. The plumber, however was not amused. (He was from Poland).
I use my dewalt core drill with wood beaver. Flys through and good clutch or nick the plumbers holes whilst he’s having his third breakfast break
T
Toneyz
Never had a house where the knock out holes lined up.
T
Toneyz
Same here Tel when I used to do house bashing I beam joists only came in at the end of me doing it.
Keep that wrist tense. we've probably all at some point been close to a wrist injury from the kickback.
Best ever solution for me is my milwaukee cordless with bosch self-cut bits. all my sparky friends beg to use it when im with them. would fully reccomend. just dont hit nails though
Yes i melted the brush holder on mine doing that, the trick is to put it in first gear meaning the motor and fan are going a lot quicker.
Or get a brushless drill, they don't have the brushes to overheat. But still use 1st gear.
As above an impact driver is not for drilling, only for screwing. Also re the noise thing, use ear protection, you only get one set of ears
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