3.5x9.5 vs 3.6x9.5 Drill bit

[b_in_subtle]

So basically I have a 3.5x9.5 bit from a mount, most skis I notice have a rec bit of 3.6x9.5.

I want to know if I can just use the 3.5 interchangeably with a 3.6. I’m pretty sure most drills hand drills aren’t precise within 0.1mm either way.

Any techs out there who want to chime in?

**This thread was edited on Dec 7th 2022 at 4:04:46pm

 

[kalle.]

i say you’ll be golden with the 3.5 bit. remember to clean the holes well!

 

[profa_212]

you will probably be fine. But personally, I would just spend the 10 bucks and get the correct size

 

[BradFiAusNzCoCa]

You’re golden. Only when you go to 4,1 is it really a difference. 4,1 is for skis with metal

 

[FaunaSkis]

don’t worry about 0.1mm smaller hole, the drill will overdrill the hole size a bit anyway.

Definitely clear the debris from the hole, compressed air does it best.

if you’re wanting to do an optimum mount you should tap the holes with a #12AB tap.