What's inside
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Second-fix is where sloppy tool choice shows. Architraves, skirtings, doors, ironmongery — you are working to finished surfaces where a blunt chisel or a square that is out by half a degree leaves a gap you cannot hide with caulk. A good second-fix hand tool kit is not about owning everything, it is about carrying the few tools that let you scribe, trim, hinge and fit cleanly without walking back to the van every five minutes.
What a second-fix kit needs to cover
A house-bash joiner needs four jobs covered by hand tools even if you own every cordless going: paring and chopping for hinges and latches, trimming and shooting end grain, accurate marking and measuring, and keeping it all on your body. Power tools do the bulk cutting, but hand tools do the fitting. If you are building a kit from scratch, budget for those four groups before you think about anything specialist like a shoulder plane or dovetail saw.
Weight matters more than it does for bench work. You will carry this kit up scaffolding and across plots all day. A full roll of bench chisels and a No. 5 jack plane looks good in the workshop but stays in the van on site. For second-fix, three or four chisels and one small plane do 95% of the work.
Chisels and trim planes: the fitting tools
For second-fix, you want bevel-edge chisels with a low side bevel so they get into hinge gains and latch mortises. Buy 12mm, 19mm and 25mm. That set will cut a standard 76mm butt hinge and clean out a tubular latch housing without needing to lean a wide chisel over. Some carpenters add a 6mm for striker plates, but you can get by without it at first.
Steel choice is a trade-off. Chrome vanadium at 58-60 HRC is tougher and cheaper to replace when you hit a hidden nail or staple, which you will. PM-V11 or A2 holds an edge longer but takes longer to hone and costs twice as much. On price work, most fixers stick with the cheaper steel and touch up the edge often. Keep the primary bevel at 25 degrees and a 30-degree micro-bevel; anything lower crumbles on MDF and anything higher needs too much force to pare end grain.
Failure mode to watch: handles that mushroom or split. Plastic-handled site chisels take hammer abuse, wooden handles do not unless they have a proper steel hoop. If you use a steel hammer instead of a mallet, avoid acetate handles without a striking cap.
The one plane you need on your belt is a low-angle block plane. It trims scribed skirting, shaves a door edge that is binding by 1mm, and flushes architrave mitres. Look for one around 160-170mm long with an adjustable mouth. A low angle block plane at 12 degrees bed angle will handle end grain far better than a standard 20-degree block. You do not need a No. 4 smoother for second-fix unless you are fitting solid timber linings; leave it in the workshop.
If you are choosing between individual chisels and a kit, a 3-piece or 4-piece set of bevel edge wood chisels from a reputable maker like Narex, Stanley FatMax or Kirschen is usually better value than buying singles. Just avoid 6- or 8-piece sets for site work — you will never carry the 32mm and 38mm on second-fix and the roll adds bulk.
Measuring, marking and scribing
Second-fix accuracy lives or dies on marking. A tape measure does the rough work, but do not trust the hook for 0.5mm hinge layout. For that you need a quality combination square and a sharp marking knife or 0.5mm mechanical pencil.
A 300mm (12-inch) combination square is the workhorse. Check it before you buy: hold it against a known straight edge, mark a line, flip the square and mark again. The lines should coincide. Cheaper squares are often out by 0.3-0.5mm over 100mm, which puts a door hinge out by 2mm across its height — enough to make the door twist. A good cast-iron head with a hardened rule stays square after drops; die-cast zinc heads bend.
Add a sliding bevel for angled architraves and bay window skirtings, and a small 150mm double square for latch plates. For scribing skirting to an uneven wall, a simple compass scribe or even a pencil with a 6mm offcut block is more reliable than the gimmicky scribe tools. A 2H pencil leaves a finer line than a carpenter’s flat pencil for hinge gains.
A proper combination square 300mm with a stainless rule and a brass scriber pin will last years if you do not use it as a hammer. Keep a 5m tape with a 25mm wide blade for one-handed measuring to crown and skirting. The 8m tapes are heavier and the extra length is rarely used inside.
Carrying it: tool belts and site storage
The best kit is useless if it is in your toolbox under the stairs when you are on the landing. Second-fix favours a light belt over a full rig. A two-pouch belt with a dedicated chisel loop, hammer loop and tape pocket keeps weight on your hips, not your shoulders. Leather lasts but is hot in summer and heavy when wet; nylon with a padded belt is fine for most.
Do not carry every chisel in your belt. One chisel in the loop, the others in a shallow tool tote or a canvas roll in the room you are working in. That way you are not stabbing yourself climbing through a loft hatch but you are not walking 20 metres for each tool change either.
For blades, a simple plastic edge guard is cheaper than re-grinding a nicked edge after it rattled against a speed square in your pouch. Keep a small diamond plate — 400/1000 grit, credit-card size — in your tote. Two minutes honing at lunch saves you forcing a dull chisel through oak and slipping into the door face.
Kit comparison: what to buy at each budget
There is no single boxed kit that is perfect for second-fix. Most pre-packed kits include tools you do not need and skimp on the ones you do. The comparison below assumes you already own a hammer, tape and utility knife.
| Kit Approach | Typical Contents | Weight on Belt | Best For | Trade-off |
|---|---|---|---|---|
| Budget Starter (around £90-£130) | Stanley FatMax or similar 3x chisels, basic block plane, 300mm combi square, sliding bevel | ~2.1 kg | Apprentices, occasional second-fix | Squares may need checking; plane needs fettling out of box; chisels need initial flattening |
| Mid-Range Site Kit (around £180-£260) | Narex Richter or Kirschen chisels (3), Quangsheng / Faithfull low-angle block plane, Bahco or Starrett square | ~1.9 kg | Full-time fixer who sharpens regularly | More money upfront but holds edge longer; square stays true after drops |
| Buy Once (around £300+) | Veritas / Lie-Nielsen block plane, PM-V11 chisels, Starrett 300mm square | ~1.8 kg | High-end finish work, hardwoods | Diminishing returns on MDF and softwood second-fix; painful to replace if stolen on site |
The honest truth is the budget starter is fine for MDF skirtings, pine architraves and hollow-core doors, which is most new-build second-fix. The extra money for premium steel pays back only if you are hanging solid oak doors or fitting hardwood linings every week, where you are paring end grain for hours and edge retention saves real time. For everyone else, spend the difference on a good diamond plate and learn to hone quickly.
Common mistakes and what to skip
Do not buy a full bench plane set for second-fix. A No. 5 or No. 6 has no place on a belt and will not get used on site. Do not buy long-series chisels either; short, sturdy site chisels give better control when you are chopping a hinge gain with the door still hung on one screw.
Another mistake is trusting laser levels for door linings and then marking hinges with a blunt pencil. Plumb the lining once with a 1200mm spirit level, then do all hinge and latch layout by marking knife from the door itself. That way any 1-2mm out-of-plumb follows the lining and the gaps stay even.
Skip multi-tools that combine square, level and scribe. They do nothing well and are never square after a month in a tool bag. Individual tools are lighter, cheaper to replace and more accurate.
Finally, do not over-tighten the mouth on your block plane for every job. Close it to 1mm for end-grain trimming to avoid tear-out, open it to 2-3mm when taking a heavier shaving off a binding door edge. Learning that 30-second adjustment is more useful than buying a second plane.