Buying guide
Best Revolver Detail-Strip Tools (and the Screwdrivers That Wreck Guns)
Almost every used revolver with chewed screw heads and a scarred side plate got that way in one afternoon, with a hardware-store screwdriver and good intentions. The tools that prevent it cost less than the damage does.
The short version
- Buy hollow-ground screwdrivers before you remove a single screw. Tapered hardware-store tips cam out and round the slot, and buggered screws are permanent and immediately visible to any buyer.
- Never pry a side plate off. It is fitted, not held on by friction at the edge, and prying leaves a mark that never comes out. It is removed by rapping the grip frame with a plastic mallet.
- Extractor rods on some revolvers have left-hand threads. Turning the wrong way tightens them, and forcing it bends the rod.
- Detail strip is not part of routine cleaning. Most owners should own the screwdrivers, the bench block and the cleaning tools, and stop there.
How far you should actually go
There is a useful distinction between three levels of revolver work, and most people should stop at the second.
- Field cleaning — bore, chambers, cylinder face, breech face, under the extractor star. No disassembly beyond opening the cylinder. This is what maintenance actually is, and it is where the majority of revolver problems are prevented.
- Owner-level disassembly — removing grips, removing the cylinder and crane assembly on designs where that is a documented owner operation, cleaning under the extractor star properly. Requires correct screwdrivers and a bench block, and nothing else.
- Detail strip — side plate off, lockwork out. Genuinely useful to understand, genuinely easy to do damage during, and rarely necessary. If you want to learn it, learn it on a cheap gun.
Everything below is organised around that. The tools for the first two levels are cheap and every revolver owner should have them. The tools for the third are a smaller purchase than most people expect, but the skill is the expensive part.
Before any disassembly or cleaning: open the cylinder, look at every chamber, and physically check each one. Then do it again. Remove all ammunition from the room you are working in. Most negligent discharges during cleaning happen on guns their owners were certain were empty.
Screwdrivers: the one non-negotiable
If you buy one thing from this page, buy this, and buy it before you touch a screw on any gun you care about.
A hardware-store screwdriver has a tapered, wedge-shaped tip. Put it in a firearm screw slot and it contacts only at the top two corners. Apply torque and the wedge shape converts some of that torque into lifting force, so the tip rises out of the slot and rounds the edges as it goes. That is camming out, and once it has happened the slot is permanently widened and the screw head is visibly damaged.
A hollow-ground bit has parallel sides — the faces are ground concave so that they are vertical where they meet the slot. It bears on the full depth and width of the slot, so applied torque goes into rotation instead of into lifting. The screw turns, and the slot survives.
Buy a set rather than individual bits, because firearm screws come in a wide range of slot widths and depths and the correct bit is the one that fills the slot completely in both dimensions. A bit that is slightly narrow is nearly as bad as a tapered one.
Hollow-ground gunsmith screwdriver set
- GrindHollow-ground, parallel-sided
- RangeMany widths and thicknesses
- HandlePalm-driven for controlled torque
- AddA magnetic tray for the screws
The single highest-return tool purchase a revolver owner can make, and the one that most reliably distinguishes a gun that will hold its value from one that will not. Choose the bit that fills the slot completely in both width and depth — a bit that rattles in the slot damages it nearly as fast as a tapered tip. Sets with a large bit selection are worth the extra over minimal kits, because the whole point is having the exact right size for every screw on the gun.
Bottom lineBuy this first. Everything else on this page is optional by comparison.
We may earn a commission on qualifying purchases made through these links, at no extra cost to you.
Bench blocks and punches
A bench block is a hard polymer or nylon block with holes and reliefs machined into it, sized to support a frame while a pin is driven out. The pin has somewhere to go, the frame is supported around the hole rather than at the edges, and nothing gets marred.
The alternative — holding the frame in one hand, or resting it on a vice jaw — produces exactly the damage you would expect. Blocks are cheap.
Punches follow the same logic as screwdrivers. Use brass or nylon punches against anything you care about the finish of, and steel punches only where a brass one will not do the job. A punch that is too small deforms the pin; a punch that is too large marks the frame around it.
Bench block and brass, nylon and steel punch set
- BlockPolymer or nylon, machined reliefs
- PunchesBrass and nylon for finished surfaces
- SizesMatch the punch to the pin diameter
- MalletPlastic or brass-faced, not steel
A bench block supports the frame around the pin hole so the pin has somewhere to travel and the frame is not resting on its edges. Match the punch to the pin: too small and you upset the end of the pin, too large and you mark the frame. Use brass or nylon against blued and stainless surfaces and keep steel punches for pins that genuinely will not move otherwise. Pair with a plastic or brass-faced mallet — never a steel hammer directly on a gun.
Bottom lineCheap, and the difference between clean work and a scarred frame.
We may earn a commission on qualifying purchases made through these links, at no extra cost to you.
A revolver side plate is precisely fitted into the frame, not held on by friction at its edge. Prying it up with a screwdriver leaves a permanent mark on both plate and frame and is instantly recognisable to anyone familiar with revolvers. The correct method, after removing every retaining screw, is to hold the revolver by the frame and rap the grip frame firmly with a plastic or rawhide mallet — the vibration walks the plate loose and it lifts off level. If it will not come, a screw is still in. Count them.
Cleaning tools that matter on a revolver
Revolvers foul in places semi-autos do not, and generic cleaning kits miss most of them.
| Location | What builds up | Tool |
|---|---|---|
| Chambers | Carbon ring at the case-mouth position from shorter cartridges | Chamber brush, bronze, one size up from bore diameter |
| Cylinder face | Heavy carbon rings around each chamber mouth | Nylon brush, patience, and a lead-removal cloth |
| Forcing cone | Carbon and lead build-up at the barrel throat | Cone brush or a wrapped patch on a short rod |
| Under the extractor star | Grit and residue that lifts the star and ties up the cylinder | Nylon brush and solvent, with the star lifted |
| Breech face and firing pin channel | Primer residue that eventually affects ignition | Nylon brush; solvent sparingly near the channel |
The chamber carbon ring deserves specific mention because it causes a problem people misdiagnose. If you shoot a lot of shorter cartridges in a longer chamber — .38 Special in .357 Magnum, .44 Special in .44 Magnum, .45 Colt in .454 Casull — carbon builds a hard ring at the case-mouth position. Eventually the longer cartridges will not seat fully, and the gun appears to have developed a chambering fault. It has not. It needs the ring scrubbed out, which takes a bronze chamber brush and more effort than seems reasonable.
Chamber brushes, cone brushes and lead-removal cloth
- Chamber brushBronze, sized above bore diameter
- Cone brushFor the forcing cone
- ClothLead and carbon removal on the cylinder face
- AlsoNylon detail brushes for the star
The parts a generic cleaning kit does not address. A bronze chamber brush sized for the chamber rather than the bore is what removes the carbon ring that eventually stops longer cartridges seating. Lead-removal cloth is impregnated and chemically active rather than abrasive, which matters — do not use abrasive pads or steel wool on a cylinder face you care about, because they will take the finish with the carbon.
Bottom lineCheap, revolver-specific, and the fix for a fault most people misdiagnose as a broken gun.
We may earn a commission on qualifying purchases made through these links, at no extra cost to you.
Bore guides, coated rods and muzzle protectors
- RodOne-piece, coated
- GuardMuzzle protector for cleaning from the front
- AvoidSectioned steel rods
- WhyCrown damage costs accuracy permanently
Most revolvers must be cleaned from the muzzle, which puts the rod directly against the crown — the precisely cut edge at the muzzle that determines how evenly gas leaves behind the bullet. Damage it and accuracy degrades permanently, and recrowning is gunsmith work. Use a one-piece coated rod with a muzzle protector rather than a sectioned steel rod, whose joints scrape the bore and whose bare steel abrades the crown.
Bottom lineThe quiet accuracy-killer, and entirely preventable for very little money.
We may earn a commission on qualifying purchases made through these links, at no extra cost to you.
Gauges and measurement
The measurements that tell you about a revolver’s health are few, and the tools are inexpensive. They are worth owning if you buy used guns.
- Barrel-cylinder gap. Measured with feeler gauges at the front of the cylinder. Too tight and the cylinder binds as fouling builds; too wide and you lose velocity and get more side spitting. Compare against the manufacturer’s specified range for that model rather than a general figure.
- Endshake. Fore-and-aft cylinder movement with the action closed. Some is normal; excessive movement indicates wear and eventually affects headspace and timing.
- Range rod. A precisely sized rod used to check chamber-to-bore alignment on each chamber. This is the measurement that tells you whether a revolver is timed correctly, and it is the one most worth knowing on a used purchase.
Feeler gauges, range rods and measurement tools
- Feeler gaugesBarrel-cylinder gap
- Range rodChamber-to-bore alignment per chamber
- Compare toManufacturer spec for that model
- Use casePre-purchase inspection
Worth owning if you buy used revolvers with any regularity, because these measure the things that are expensive to fix and invisible in photographs. A range rod checking each chamber for alignment is the single most informative test you can run on a revolver you are considering, and it catches timing problems that a casual cycle of the action will not. Compare gap figures against the maker’s published specification for that specific model rather than a general rule.
Bottom lineBuy these when you start buying used guns, not before.
We may earn a commission on qualifying purchases made through these links, at no extra cost to you.
The five mistakes that cost money
- Tapered screwdrivers. Covered above, and by a wide margin the most common. Damage is permanent and instantly visible to any future buyer.
- Prying the side plate. Leaves a mark that cannot be removed without refinishing, and refinishing destroys collector value.
- Turning the extractor rod the wrong way. On some revolvers the rod has a left-hand thread, so turning it the conventional direction tightens it. Forcing it bends the rod, which is a real repair. Check the specific model before applying any force.
- Abrasives on the cylinder face. Steel wool and abrasive pads remove the carbon ring and the finish underneath it together. Use an impregnated cloth and accept that some carbon staining on a cylinder face is normal and harmless.
- Detail-stripping a gun you cannot reassemble. Revolver lockwork contains small parts under spring tension, and the rebound slide in particular is notorious for launching across a room. Work in a tray or a clear bin, photograph each stage, and learn on a gun whose loss you would not mourn.
Timing faults, endshake beyond specification, a cracked forcing cone, anything involving fitting a new part, and any spring change on a revolver you rely on. These are not stubbornness problems and they do not yield to more force. A revolver that fails to carry a chamber into alignment before the hammer falls should not be fired until it is corrected.
What to buy, in order
In sequence, stopping wherever your actual needs stop:
- Hollow-ground screwdriver set. Non-negotiable, before any other purchase, before touching any screw.
- Revolver cleaning tools — chamber brushes, nylon detail brushes, lead-removal cloth, a one-piece coated rod and a muzzle protector.
- Bench block and brass punches, with a plastic mallet.
- Feeler gauges, once you start buying used.
- Range rod, when you are buying used regularly enough that it pays for itself on one avoided purchase.
- Model-specific tools — only when you have identified a specific job that needs one, never speculatively.
Most revolver owners should own the first two and stop. That is not a limitation; it covers everything routine maintenance requires, and it is the point past which the skill matters more than the tool.
Firearms bought online ship to a licensed FFL for transfer, not to your door, and that transfer is subject to federal, state and local requirements that differ by jurisdiction — waiting periods, permits, roster or compliance lists, and feature restrictions among them. Ammunition shipping is separately restricted or banned outright in several states and many municipalities, and some require a permit or an FFL as the delivery point. Rules change often and retailers enforce them at checkout, not before. Confirm your own state and city requirements with the retailer, your transferring dealer and your state attorney general’s office before you order. Nothing here is legal advice.
Frequently asked questions
Why do I need special screwdrivers for a revolver?
Because ordinary screwdrivers have tapered wedge-shaped tips that touch a firearm screw slot only at the top corners. Under torque that wedge shape lifts the tip out of the slot, rounding the edges as it goes. Hollow-ground bits have parallel sides that bear on the whole slot, so torque turns the screw instead of camming out. Buggered screw heads are permanent and are one of the first things an experienced buyer looks at.
How do I remove a revolver side plate without damaging it?
Never by prying. The plate is precisely fitted into the frame and levering it leaves a permanent mark on both surfaces. Remove every retaining screw, count them to be sure, then hold the revolver by the frame and rap the grip frame firmly with a plastic or rawhide mallet. The vibration walks the plate up and it lifts off level. If it will not move, a screw is still in place.
Why won't .357 Magnum cartridges seat after shooting .38 Special?
Because a hard carbon ring has built up in each chamber at the position where the shorter case mouth sits, and the longer cartridge cannot push past it. The gun is not faulty. It needs the chambers scrubbed with a bronze chamber brush sized for the chamber rather than the bore, and it usually takes more effort than seems reasonable. The same happens with .44 Special in .44 Magnum and .45 Colt in .454 Casull.
Should I detail-strip my revolver for cleaning?
No. Routine maintenance is bore, chambers, cylinder face, breech face and under the extractor star — none of which requires the side plate to come off. Detail stripping is worth learning if you are interested, but it exposes small spring-loaded parts and offers real opportunities to lose or damage something. Learn it on an inexpensive gun, in a tray, photographing each stage.
Can I clean lead off the cylinder face with steel wool?
Not on a gun you care about. Steel wool and abrasive pads remove the carbon and the finish beneath it together, and the resulting bright ring around each chamber is permanent. Use an impregnated lead-removal cloth, which works chemically rather than abrasively, and accept that some carbon staining on a cylinder face is normal and does not affect function.
What should I check before buying a used revolver?
Timing and lockup at every chamber, endshake with the action closed, barrel-cylinder gap against the maker’s specification, bore and forcing cone condition, and whether the screws show damage from previous amateur attention. A range rod checking chamber-to-bore alignment on each chamber is the single most informative test available and catches problems that cycling the action by hand will not reveal.