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.
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.
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.
Hi, I'm mounting some Look SPX 12 Dual WTR B120 bindings on a pair of Faction dictator 3.0's, the topsheet of the ski says to use a 4.1x9mm drill bit, but I've only got a 4.1x9.5mm drill bit, will this be alright, or will that penetrate too deep?
Josh, The extra .5mm will likely be OK, though it's always best to follow the manufacturer recommendations.
Hi Jesse, A) Yes it's 4mm. See here for more info. B) It should be marked on the ski, but likely 4.1x9 for the Ultras. C) Look at the QK install kit, which could replace or supplement the above bit. D) Depends on the ski and it's condition.
If I try to install quiver killers on my Dynafit speedfit 84 for my speed turn 2.0 binding and I comes up as below: 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?
I just purchased last years Movement Alp tracks LT 106 from you guys. Im getting ready to mount them and wondering what 3.5 drill bit to get. On this page you say the 3.5x9.0 just double checking before I put the bit in them.
Thanks again, Love the site and how helpful you guys are.
I notice you don't specify which drill bit would be a 'workhorse' bit, or the classic one I could find in most shops. I've had good success in the past with whichever that bit may be... 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.
Hey Zach! Thanks for reaching out! We don't list the workhorse bit because manufacturer vary their recommendations based on the construction. It's best to defer to the particular ski model to make the decision.
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!