Dry lubricant for forstner / router bits

[woodworkingMK]

A friend of mine reported that he used dry lubricant on forstner bit with great success. He had to bore many holes in a hard oak, and said that if it wasn't the lubricant, the bit would surely burn. The lubricant helped to make the holes with much ease.

Do any of you use dry lubricant on similar applications? Please share your experience if so.

 

[Phil Pascoe]

Other than making sure your bits/cutters are clean and sharp I wouldn't think anything is necessary.

 

[rafezetter]

I'm curious, but how does the lubricant stay in the hole to work? I understand, clean / sharp is best option but in reality that not always possible unless you are versed in how to sharpen a forstner bit.

 

[woodworkingMK]

He says, it helps to lower the friction, thus the bit heats up less. The lubricant used is dry lube PTFE spray.

 

[MattRoberts]

I use it on router bits to help prevent pitch build up, following advice from some forum members

 

[edcruwys]

Sharp, clean bits run at the correct speed will not need lubricant. Forstner and sawtooth bits are not designed to run at high speed.

 

[nev]

Any lubricant will surely wear off any cutting surface within a few seconds if indeed that long. :duno:

 

[MattRoberts]

Sharp, clean bits run at the correct speed will not need lubricant. Forstner and sawtooth bits are not designed to run at high speed.

Whilst that may be correct for nice dry hard wood, that's not necessarily the case for soft wood

 

[Beau]

He says, it helps to lower the friction, thus the bit heats up less. The lubricant used is dry lube PTFE spray.

Would have thought any stray PTFE is going to play havoc with any subsequent finish.

 

[iNewbie]

He says, it helps to lower the friction, thus the bit heats up less. The lubricant used is dry lube PTFE spray.

Would have thought any stray PTFE is going to play havoc with any subsequent finish.

I think it depends on what product you use.

https://www.actioncan.com/product/ptfe/

 

[Myfordman]

The gas from PTFE when heated is dangerous if inhaled.

 

[Northern woodworm]

That is true but as the temperature for the release of Hydrofluoric acid is 300C it seems unlikely that that temperature will be reached if use sharp tools in wood.