Wintersteiger ski mounting drill bit 4.1mm x 9.5mm 25 hole plugs for binding installation

Wintersteiger's 4.1mm x 9.5mm drill bit with 25 hole plugs is a purpose-built tool for mounting downhill ski bindings cleanly and reliably.

Whether you're a shop tech, a mobile tech, or a confident DIY skier, the right drill bit makes the difference between a tidy, secure binding installation and a messy, undersized hole. This Wintersteiger bit is sized to match the majority of binding and ski manufacturer recommendations and is supplied with 25 matched hole plugs to protect the core and finish of the ski after installation.

What does this drill bit do for my binding installation?

The bit drills consistent, manufacturer-appropriate holes for most alpine bindings so screws sit flush and engage the core properly. A correct hole diameter and depth reduce the risk of stripped screws and uneven seating.

• Diameter: 4.1 mm for compatibility with many binding screws.
• Depth/length: 9.5 mm to match common screw lengths.
• Produces clean, repeatable holes for accurate screw torque.

Can I use this bit with a regular hand drill?

Yes — the bit is designed to work effectively with most standard hand drills, no drill press required. Using steady speed and light pressure yields the best, chip-free results; a drill guide or jig improves repeatability when mounting multiple bindings.

• Compatible with common corded and cordless drills.
• Recommended to use a jig for precise hole placement.
• Works well with hand-held technique for single installations or field work.

Why include 25 hole plugs — how do they help?

The 25 included plugs fill the drilled holes after screws are installed or removed, protecting the ski core from moisture and giving a finished look. Plugs also help maintain torsional stiffness and reduce the chance of snow or water ingress over time.

• Pre-sized plugs match the 4.1 mm hole for a snug fit.
• Provide cosmetic and functional protection for the ski surface.
• Useful for demo skis, rental turnarounds, or repair work after deinstalling bindings.

How do I know this bit fits my skis and bindings?

Most skis list the recommended drill diameter near the binding area or in the manufacturer’s tech specs; 4.1 mm is commonly specified for alpine binding screws. When in doubt, compare the screw manufacturer’s recommended pilot hole size or consult your binding instructions.

• Check ski sidewalls or tech sheet for printed bit size guidance.
• Verify screw manufacturer specs for pilot hole diameter and depth.
• Test on a scrap or an unused area before final install if unsure.

Who this is for: This Wintersteiger drill bit kit is aimed at ski technicians, rental shop teams, and experienced skiers who mount their own bindings. It's also a practical choice for mobile tuners and home workshop setups because it combines a shop-grade bit size with a ready supply of hole plugs, helping installations look professional and perform as intended.