NW Wood Auger Bit
NW long wood auger bits are designed to drill through several logs or beams at once for making electrical chases, drilling through-bolt chases, drilling truss pieces, stair treads, etc.
Originally designed for log home builders and timber framers, these have become the wood auger bits of choice in those professions. The 12″ long 1″ diameter bit is specially designed for drilling Holes for Timber Frame pegs
NW auger bit is shown as the center bit in the pics.
Lengths to 60″ and diameters from 7/8″ – 1-1/2″ (we do have a couple of 1-3/4″ left)
- Alloy tool steel center shaft assures extra strength
- Set up for 1/2″ drive drill. 1/2″ indexed non-slip hex
- Self feed centering point.
- Double spur, double cutters.
- Continuous full length flite for chip removal. (flites come to within approximately 5″ of the drill end of the bit)…thus a 40″ bit has 35″ of flite for moving chips.
Note: Don’t expect the full length flites to continue to eject chips unless you occasionally (every few inches), “clear” the hole. i.e. pull the bit out to remove the accumulated chips.
Due to the large flites on these auger bits it may tend to hook the wood slivers on the exit side of the log or timber causing it to screw it’s way on through.
This can damage the bit. To avoid this, do not force the bit when exiting. Switch drill motor from forward to reverse a couple of times working the bit in and out to remove wood slivers on the exit side of the hole.
Smaller flites on the 7/8″ and 1″ diameters may load up as the center shaft is 1/2″, thus the 1″ bit only has 1/4″ of flites each side. If this happens on any auger bit, the bit must be pulled out to allow it to clean.
All this said…these are top quality, high demand auger bits. Originally made for Log Builders and Timber Framers…Very popular.
Do not force it!
- Due to the long length of some of these bits you can break them if you force them.
- There is no guarantee for bits broken due to excessive force.
- Use only with a low speed, (200-400 rpm), hand held drill.
- Do not use with hammer drill or impact type drill motor
- If you spin them too fast they’ll turn the pitch in the wood to glue, which starts to collect the chips and they can’t feed up the shaft. You then need to both clean the chips that are stuck to the bit, you also need to clean with thinner to remove the pitch.
- Western Red Cedar and some fast growth have enough soft wood that the tip can’t find something to bite into.