Impact Air 45 Handpiece Repair
Why the Rear Exhaust Matters
- Air exits through the back, not at the head Exhaust is carried down the handpiece and out through the connection, away from the tissue you are working in.
- Built for surgical extractions That exhaust routing is the whole reason oral surgeons specify this handpiece rather than a standard high speed.
- The 45 degree head earns its keep It reaches lower third molars without levering against the adjacent tooth, which is where a straight head fights you.
- We run it to spec before it ships A rebuild is only finished when the handpiece runs correctly at the pressure the manufacturer specifies.

What a Rebuild Includes
| Component | What we do | Included |
|---|---|---|
| Turbine and bearings | Matched set replaced together, never one bearing at a time | Every rebuild |
| Chuck | Inspected on every rebuild; a new chuck comes with the new turbine on the $159 repair | Every rebuild |
| O-rings and seals | Full set replaced, then the handpiece is run at spec pressure | Every rebuild |
| 45 degree head | Cleaned, inspected for cracking around the bur seat, concentricity gauged | Every rebuild |
| Four hole connection | Air and water ports flow tested at working pressure | Every rebuild |
| Fibre optics | Light output checked against a known good head, replaced if dim | Where fitted |
Impact Air 45 Questions We Get on the Phone
Do you repair the Impact Air 45?
Yes. It comes across the bench as a rebuild rather than a patch: matched bearing set, chuck inspected, a full set of O-rings, then run at manufacturer-spec pressure before it goes back. Inspection and the written estimate are free, and nothing is opened further until you have approved a figure.
Why does the rear exhaust matter so much on this handpiece?
A standard high speed vents its exhaust air at the head. During a surgical extraction that puts pressurised air right at an open flap. The Impact Air carries the exhaust back down the handpiece and out through the connection instead, away from the site. That is the reason surgeons specify it, and it is why a leaking seal on this model is not a cosmetic problem — it defeats the design.
How long does an Impact Air rebuild take?
2–3 business days on the bench, plus transit each way. Shipping to us is free on a prepaid label sent the same business day you ask, with no minimum order. If you are down to one working handpiece, tell us when you call and we will be straight with you about whether the timing works.
What if it turns out not to be worth repairing?
Then there is no repair charge at all. A flat $29 covers shipping and handling and the handpiece comes back to you. You will hear that from us before you have spent anything on the work.
Impact Air 45 Repair Pricing
An Impact Air 45 rebuild is $129. With a new turbine it is from $159. Inspection and the written estimate are free, shipping to us is free on a prepaid label sent the same business day you ask, and if the handpiece is not worth repairing there is no repair charge at all — a flat $29 covers shipping and handling and it comes back to you. If the teardown turns up more than the estimate covered, you approve the updated figure before we go any further. Start on our Book My Repair page with your model number. Full rates are on our repair pricing page, and surgical handpieces have their own endo & surgical repair page.
We rebuild every major handpiece brand on the same terms and the same bench. If your operatory runs more than one, see our KaVo, Midwest, Star, NSK, A-dec and W&H, Lares, Bien-Air, Beyes, Brasseler and Young handpiece repair pages, or browse our dental handpiece repair overview.
