How to choose a slate cutter
Updated: October 2026
You have a stack of replacement slates on a bench and Amazon is offering tin snips, Venetian-blind slat cutters, and a drill head that costs more than a day’s hire. A slate cutter, the same tool UK merchants often call slate scissors, is a short-bladed shear for roofing slate, often with a 3.2 mm punch for nail holes. This page is the decision order only: thickness you can check, whether you need a punch, then hand plier versus drill shear. The three-row table and the 19 October 2026 amazon.co.uk prices live on the [slate scissors](/hub/cutting-tools/slate-scissors) comparison. A qualifying purchase can earn a commission at no extra cost to you.
You have a stack of replacement slates on a bench and Amazon is offering tin snips, Venetian-blind slat cutters, and a drill head that costs more than a day’s hire.
You have a stack of replacement slates on a bench and Amazon is offering tin snips, Venetian-blind slat cutters, and a drill head that costs more than a day’s hire. A slate cutter, the same tool UK merchants often call slate scissors, is a short-bladed shear for roofing slate, often with a 3.2 mm punch for nail holes. This page is the decision order only: thickness you can check, whether you need a punch, then hand plier versus drill shear. The three-row table and the 19 October 2026 amazon.co.uk prices live on the slate scissors comparison. A qualifying purchase can earn a commission at no extra cost to you.
Our top picks
| Badge | Product | Listed max thickness | Hole punch | Power | Note | Price | Offer |
|---|---|---|---|---|---|---|---|
| Best overall |  TSF Products TSF SC01G slate cutter | 5 mm | 3.2 mm, up to 60 mm from the edge | Manual | 8.8 | about £37.95 | View offer |
| Best value |  Tooltime Tooltime 320 mm slate cutter | 6 mm | Not listed | Manual | 8.0 | about £11.36 | View offer |
| Alternative |  Malco Malco TSNS1 slate turbo shear | 4–8 mm | Not listed | Drill attachment | 7.4 | about £247.83 | View offer |
On this page
Three tools, three jobs
This scrape kept three listings, and they are not three versions of the same shear. Tooltime’s 320 mm spring-loaded cutter at £11.36 is a budget plier for natural slate, with a 6 mm listed maximum and no punch in the file. The TSF SC01G at £37.95 is the mid-price plier: 35 mm stroke, 3.2 mm punch, 5 mm cap, natural and fibre-cement, 945 g. Malco’s TSNS1 at £247.83 is a drill shear for 4–8 mm natural slate, with a replaceable blade and skid, and no punch.
A householder replacing a few porch slates wants the TSF, or a merchant plier, used on a bench with eye protection. A roofer who will hole every cut piece wants a punch on the same tool. A contractor with many metres of 4–8 mm natural slate is the Malco buyer, and they still need silica and height controls. HSE’s cutting-roofing-tiles page says natural slate and fibre-cement do not need power tools. Once you know the type, best slate cutter UK names one listing per job.
Merchant shelves sit beside this set as context, not extra rows. Wickes lists a Roughneck cutter with a 3.2 mm punch at £54. Edma merchants print 7 mm and a replaceable blade at about £54–£67. Roof Giant’s Dargan TODSTC35 family shows 7 mm on one page and 5 mm on the maker page. That conflict stays a conflict. None of those ASINs is in the comparison.
Thickness you can check
Measure the slate you will actually cut, not the catalogue name. TSF states 5 mm. Tooltime states 6 mm. Malco states 4–8 mm for the drill shear. Several UK merchants state 7 mm for plier cutters. Thicker heavies need a slater’s hammer and stake. Forcing 8–10 mm stone through a 5 mm tool is the usual way to crush an edge or twist a frame.
Wickes prints a 55 mm cutting capacity on the Roughneck. That figure is stroke, how far the jaws travel, not how thick the stone can be. TSF’s 35 mm blade length is the same kind of number: a bite length, not a thickness. If a page mixes those two, treat the millimetre next to slate or max as the cap.
Welsh heavies and old Ballachulish-type slates often sit above a 5 mm plier. If your stack is thicker than 6 mm, neither plier is a safe bet, and Malco’s 4–8 mm window is a listing claim, not a lab result. Cutting steps sit on how to cut roof slates. Dust and grinders sit on slate cutter vs angle grinder.
Punch or no punch
A 3.2 mm pin matches a small slate-nail shank. SSQ’s fixing guide puts holes at holing gauge, gauge plus headlap plus 10 mm, and 20–25 mm from the long edges, punched from the bed. TSF lists a 3.2 mm punch usable up to 60 mm from the tile edge. That 60 mm is tool reach, not holing gauge. Tooltime’s listing has no punch. Malco’s listing has no punch.
If you will nail centre-fixed slates, buying Tooltime and hoping to drill later is the slower path. NHBC 7.2.19 and BS 5534 want two nails on centre-nailed slates, in copper, aluminium, or silicon bronze, not galvanised steel. One verified UK review of the TSF could not make a hole in natural slate; others praise holes in synthetic slate. Thickness and support decide that result more than the star average. Skip Tooltime when holing is part of the job. Keep it when you already have a slater’s hammer spike and you are only trimming old slates on a bench.
What this page will not rank
This page will not call any listing the UK best. The TSF 4.4 from 101 is more useful than Tooltime’s 4.0 from 20, and Malco’s 3.7 from 38 includes non-UK texts you should not treat as British opinion. Stars do not choose a cutter. Thickness, punch, and whether you are on a bench or a roof do. Nine misfits were deleted from the scrape, including a blind slat cutter and the Malco TSF1 siding shear. Tin snips, aviation snips, fibre-cement siding shears, and sheet-metal guillotines are other products.
Do not claim dust-free cutting. A hand cutter makes less airborne silica than a dry grinder; it still chips stone. Do not cut a slate that might contain asbestos. Call a professional if the roof is high or fragile, if you need a full re-slate, or if the slates are thick heavies.
Common questions
Is a slate cutter the same as tin snips?
No. A slate cutter is a short-bladed shear built for roofing slate, often with a 3.2 mm punch. Tin snips and aviation snips are sheet-metal tools. The scrape also dropped a Venetian-blind slat cutter and the Malco TSF1 siding shear. If the listing never names slate or fibre-cement, it is not in this comparison.
How thick a slate will a handheld cutter take?
In this set TSF states 5 mm and Tooltime states 6 mm. Merchant Edma and Dargan pages often print 7 mm, though one Dargan family also prints 5 mm on the maker page. Malco’s drill shear states 4–8 mm natural slate. Thicker heavies need a slater’s hammer and stake. The printed maximum is a listing claim, not a lab result.
Do I need the hole punch?
You need it if you will centre-nail the cut pieces and you do not already own a slater’s hammer spike. TSF lists a 3.2 mm punch. Tooltime and Malco do not. NHBC 7.2.19 wants two nails in copper, aluminium, or silicon bronze.
When is a drill shear worth about £250?
When you already own a drill and you have many metres of 4–8 mm natural slate, not a porch of a dozen tiles. The Malco TSNS1 is £247.83 on the 19 October 2026 amazon.co.uk scrape, with a 3.7 from 38 that mixes UK and non-UK texts. One UK note said the head hits larger slates. A drill shear is not a grinder, and it is not dust-free.
Will the TSF 5 mm cap cover Welsh heavies?
Usually not. Welsh heavies and many older slates sit above 5 mm. Forcing them through the SC01G is how reviewers get a crushed edge. Measure the thickest piece in the stack. If it is over 5 mm, look at a merchant 7 mm plier, a slater’s hammer and stake, or the Malco only if the stone is still inside 4–8 mm.
Why do merchant Edmas say 7 mm when Amazon TSF says 5 mm?
They are different tools on different shelves. Edma merchants print 7 mm and a replaceable blade at about £54–£67. TSF prints 5 mm at £37.95. This comparison does not add Edma as a fourth row. Measure before you buy.
Are Venetian-blind slat cutters the same tool?
No. A blind slat cutter was one of the nine misfits deleted from the scrape. It trims PVC or aluminium slats, not roofing slate. If the title never mentions slate, fibre-cement, or a 3.2 mm slate punch, leave it out of this decision.
Related pages
Sources
Public UK sources and amazon.co.uk listing lines; retrieved 19 October 2026.
- HSE, Cutting roofing tiles (retrieved 19 October 2026)
- HSE ST5, Sawing slate (retrieved 19 October 2026)
- HSE, Roof work (retrieved 19 October 2026)
- NHBC 7.2.19, Fixing tiles and slates (retrieved 19 October 2026)
- SSQ, Natural slate design and fixing guide (retrieved 19 October 2026)
- Wickes, Roughneck slate cutter and hole puncher (retrieved 19 October 2026)
- amazon.co.uk, TSF SC01G (retrieved 19 October 2026)
- HG Roofing Supplies, TurboShear NS1 (retrieved 19 October 2026)