1"x 8 tpi spindle tap question

[Truefire]

I am looking to purchase a 1"x8 tpi spindle tap that is designed to be used for wood and is made or marketed by Beall. I was wondering if the tap was by chance designed to work with a 1" forstner bit for if this tap is designed like all other taps of course an undersized drill size would be used.

Therein lies the dilemma, this tap is designed for woodworkers. i am not presently familiar with any drill bit on the market outside of high speed drill bits that come in such variations of sizes which one may need to use with this tap.

Curious to know if anyone is familiar with this system?

Chris

 

[manfre]

I have this tap and used it to make face plates for my delta lathe. It's been a while since I've used, but I I'm pretty sure I pre-drilled the hole with a 7/8" forstner bit.

Beal taps always need a 1/8" undersized pilot hole.

http://youtu.be/SE-OtSzoneU
http://www.youtube.com/watch?v=Q3PoLaJUjow&feature=channel_page

 

[Truefire]

thanks a million, exactly what i was looking for. I knew wood would take a slightly smaller bit due to the fragile threads created if using the wrong size pilot hole.

you guys are the greatest, you always have the answers i need :icon_cheers

Chris