Lightweight skis may require some unusual mounting tools. For example, some ski specs call for drill bits that are typically used for child skis. Yes, your expensive skinny skis may in fact be designed for children. But hopefully you mount them like an adult by using some of the tools below.
3.5 x 7.5mm Drill Bit - Custom size required for Vapor Svelte and shorter Nano skis (164, 172). Also good for many junior skis.
3.5 x 9.0mm Drill Bit - Step drill bits that can be used with most Movement skis. The 9mm step prevents drilling any deeper.
3.5 x 9.5mm Drill Bit - Nice steel bits that meet the specs of most La Sportiva skis, with the notable exception of Vapor Svelte and shorter Nano skis (164, 172).
3.6 x 9.0mm Drill Bit - This is the bit for Atomic skis with wood cores (including Ultimates), Elan race skis, and folks who like numbers divisible by 0.9.
3.6 x 9.5mm Drill Bit - Black Diamond thinks this is the right bit for putting holes in BD skis. They might know best!
3.8 x 9.0mm Drill Bit - Unusual size preferred by the geniuses at the Trab factory in Bormio. Supplied by the geniuses at Wintersteiger. Also used for Kastle touring skis.
4.1 x 7.5mm Drill Bit - Technically a bit for junior skis, it works great on any thin ski coupled with shallower screws.
4.1 x 9.0mm Drill Bit - The exact specs from most Dynafit, Hagan, & Fischer skis since they have metal plates to drill through.
4.1 x 9.5mm Drill Bit - Some manufacturers like it deep. In this case, they also like metal top plates.
T-Handle Tap - It's recommended to tap the holes for binding screws if they are going through a metal top sheet or reinforcement plate. If you need a 4.1mm wide bit, you will most likely want to tap before screwing with this sharp Wintersteiger tool, unless you like screws with mangled threads.
Torx 20 Tool - Handy T20 driver bit for reaching and turning Dynafit binding screws that are often tucked in close to the housings. Made by Dynafit.
Radical 2 Adjustment Tool - Dynafit's tool for adjusting Radical 2 bindings.
Quiver Killers - Look here.
Hardman Epoxy - The orange double bubble is a slow cure epoxy with a very high shear strength. Flexible, tough, and vibration resistant, this is for bomber mounts and inserts. Cures grey despite being named orange and comes with a mixing stick. 18 hour full cure with a 4 hour work time which is great for anal folks like us. 3.5g per pack, enough for a mount.
Plastic Hole Plug - Little bit of shaped plastic that can be stuffed into a 4.1mm wide drill hole. Insert with epoxy for a water-tight seal. Usually black.
** Please note that you should always double check the specs on your skis and ask the manufacturer if in doubt. Make sure the bit isn't longer than the depth of your skis. Some race bindings have shorter screws so you can get away with shorter bits (e.g. 7.0 or 7.5mm steps).
***Drill bits are from both Wintersteiger and Sun Valley Ski Tools. Based on availabilty.
Questions & Reviews
Thanks for the question! DPS should use a 3.6 x 9.5mm Drill Bit. As for Black Crows, it depends on which ski you're looking to mount. Some use a 3.5 and some use a 4.1.
Recommended drill bit size? And should I tap?
For the Voile Vector series we would suggest a 3.6 x 9.0mm drill bit. It is the ski construction that determines the choice so go ahead and mount up those Hagans and get skiing!
I'm mounting Look SPX 12 on Atomic Punx 7. On the ski it says to use 4.1x9 drill bit.
The ski doesn't have metal sheet in it so not sure if I should use 3.6 or 4.1. I can not find any information if the ski has a mounting plate or not.
I would like to know your opinion.
Thank you very much.
Well you are not totally hosed yet. If your ski has a metal top sheet at all your screw may hold just fine. However if the screw spins at all or if you just don't have confidence in the screw holding, install a heli-coil. A Heli-coil is a metal insert that works as a core repair for an oversized mounting hole.
A) the heel spacing at the heel. I read 4mm online, but can’t confirm.
B) what drill bit would I use to drill the new holes?
C) If I decide to use quiver killers... what would I use for that? Would that replace the above drill bit?
D) If 4mm is the right spacing it looks like I can reuse two of the drilled holes. Is that ok to do?
Any advice would be rad!
1) 4.1 x 9.0mm Drill Bit
2) T-Handle Tap (for quiver killers)?
3) Hardman Epoxy (one pack for 8 quiver killers ?)
4) 8 quiver killers
I already have some fastener kit for my speed turn 2.0.
could you verify for me this list is good enough?
Thanks again, Love the site and how helpful you guys are.
For what it's worth, I'll be using it on a couple pairs of Praxis skis. One will have carbon fiber and one will not.
I see that Atomic specs the 3.6mm bit for their ultimate skis. I'm mounting a pair of the Ultimate 65s and already have a stepped 3.5mm bit. Any reason to think that 0.1mm would make a difference? Normally I'd not even think about it but since race skis are already pushing it strength wise......Thanks!
Do you have any 3.6mm bits in stock or can you recommend where I can get them?
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