With 86 comments on a niche fastener subreddit, this post clearly struck a nerve. The question is deceptively simple: how do you remove a rivet without destroying the surrounding material? But the answer depends on rivet type, material, access from the back side, what tools you have, and what you plan to replace it with — which is why the thread exploded with discussion.

Rivets are permanent fasteners by design. Unlike bolts or screws, they're meant to be installed once and never removed. This makes them excellent for applications where vibration would loosen threaded fasteners, or where a flush profile is needed. But it also means removal is inherently destructive to some degree — the question is how to minimize collateral damage.

The general approaches to rivet removal include:

• Drilling out: The most common method. You center-punch the rivet head, then drill through it with a bit slightly smaller than the rivet shank diameter. Done carefully, this shears the head off cleanly and lets you punch out the remaining shaft.
• Grinding: For pop rivets or blind rivets with a domed head, grinding the head flat and then punching the mandrel through can work with less risk of elongating the hole.
• Chisel method: A sharp cold chisel can shear a rivet head sideways, though this risks marring the workpiece if your aim is off.

The critical detail most beginners miss is drill bit sizing. Go too large and you wallow out the hole, making replacement problematic. Go too small and you won't cleanly separate the head from the shank. The ideal bit is one gauge size below the rivet diameter — just enough to weaken the head so it pops off without touching the parent material.

For replacement, you have options beyond installing another rivet. If the hole is still clean, a new rivet of the same size works perfectly. If slightly enlarged, you can step up one size. Alternatively, many people convert to a machine screw and nut if both sides are accessible, trading the flush profile for future serviceability.

The volume of responses highlights something important about fastener communities: there's rarely one correct answer. Context — the material, the application, the loads involved, and the tools available — determines the best approach every time.