A5 horse clipper blades

Clipping in Winter: What Coat Length to Leave (13mm vs 9.5mm vs 6.3mm)

Ningbo FOLK Tools · A5 horse clipper blades · reading time about 8 minutes

Winter clipping is not really a question of whether to clip. It is a question of how much coat to leave. The blade number decides that, and three lengths cover almost every horse in work: 13 mm, 9.5 mm and 6.3 mm. Choose the wrong one and the horse is either sweating under its rug or shivering in the field. Choose the right one and the clip does its job until the coat grows back.

This guide explains what each length is for, who it suits, and where the standard and wide versions of the same blade change the job. It is written around the A5 blade system, because that is the platform most yards already own — Andis, Oster, Wahl and A5-compatible Heiniger clippers all take the same blade.

Why leave any coat on at all?

A clipped horse cannot fluff its coat up to trap warm air, so every clip trades insulation for cooling and cleanliness. In winter that trade has to be managed with rugs, shelter and work level. Leaving more coat keeps more natural insulation, but it also keeps more sweat, mud and drying time.

Horses in light work rarely need a short coat. A long clip keeps them comfortable in the field and still lets them dry after a gentle session.
Horses in hard work sweat heavily under a full winter coat, and a wet coat takes hours to dry in cold weather. A shorter clip is a welfare decision as much as a grooming one.
Skin and mud matter too. A shorter coat is easier to keep clean, which helps where rain scald, mud fever or blanket rubs are a recurring problem.

If a horse has a skin condition, is elderly, or is unwell, speak to your vet before clipping. Blade choice supports good management; it does not replace it.

The three winter lengths at a glance

Blade	Cutting height	Coat left	Best for	Trade-off
3F / 3FW	13 mm (½″)	Long	Light work, turnout, natives and cobs, late or first clips	Less cooling; slower to dry after hard work
4F / 4FW	9.5 mm (⅜″)	Medium	The all-round winter clip: trace, blanket, hunter and full clips	The middle ground — not the shortest, not the warmest
5F / 5FW	6.3 mm (¼″)	Short	Hard work, stabled horses, frequent clipping, multiple rugs	Needs rugging straight away; regrowth shows sooner

13mm (3F and 3FW): the coat-left-on clip

The 13 mm blade is the longest in the everyday A5 range. It takes the top off the coat rather than stripping it, which makes it the safest first clip for a young horse, a native or a cob that has never been clipped before. The horse still looks hairy, still has natural insulation, and can usually stay out with the same rug it wore before.

Typical uses:

Late autumn and early winter clips on horses that will be turned away or only lightly ridden.
Horses living out where the owner cannot rug heavily or check rugs twice a day.
Native breeds and cobs with dense coats that need controlling rather than removing.
Nervous or first-time horses, where a shorter clip would be a bigger step than the owner wants to take.

The limit is work. A horse in medium or hard work will still sweat through a 13 mm coat, and the sweat sits close to the skin. If the horse comes in wet every day, the clip is too long for the workload.

The 3F uses a standard cutting width for heads, legs and blend lines. The 3FW uses a wider cutting surface, so it covers the body in fewer passes and is the quicker choice for a full coat-left-on clip.

9.5mm (4F and 4FW): the all-round winter length

If a yard only stocked one blade for winter, it would be the 9.5 mm. It leaves enough coat for a horse to be comfortable in the field with a medium rug, and it removes enough that a working horse dries quickly and stays clean. That balance is why trace clips, blanket clips and hunter clips are all commonly done with a 9.5 mm blade.

It suits:

Horses in light to medium work that are clipped once and then worked through the winter.
Owners who want a clear, tidy clip without committing to heavy rugging.
Yards that clip a mixed group of horses and want one blade that works for most of them.

The 4F is the standard-width version for general work and detail. The 4FW has a cutting surface around a third wider, which is why it is the body blade in most professional kits: the same 9.5 mm finish, reached in noticeably fewer passes.

6.3mm (5F and 5FW): short coat for hard work

The 6.3 mm blade takes the coat down to about a quarter of an inch. It is the right blade for a horse in full work that sweats daily, lives in, and is clipped every few weeks through the season. It is also the practical choice for a horse that suffers from heat, or one whose coat grows back quickly and looks untidy between clips.

What to expect:

Rug immediately. A 6.3 mm coat offers little insulation, so the horse needs a rug straight after clipping and sensible layering through the week.
Plan the next clip. Short coats show regrowth sooner, so owners on a four-to-six-week cycle usually stay with this length.
Use the wide version on the body. The 5FW covers the barrel and quarters quickly; the standard 5F is easier on the neck, shoulders and blend lines.

If the aim is a show-short finish rather than a working clip, step down to the 3.2 mm 7F or its wide version, the 7FW. Those are finishing blades, not winter body blades.

Standard F or wide FW?

Cutting height is only half the decision. The other half is the width of the cutting surface. A wide blade removes more hair per pass, which shortens clipping time and reduces the number of overlapping strips across the body. A standard blade is easier to control on curved areas and blend lines.

	Standard (F)	Wide (FW)
Body coverage	More passes, more overlap	Fewer passes, faster body work
Control	Better on heads, legs and curves	Better on flat panels: barrel, quarters, back
Heat	Less surface contact per pass	More contact per pass — keep the blade oiled and clean
Best use	Detail, blending, smaller horses	Full body clips, busy yards, timed sessions

Five questions that pick the length for you

How hard is the horse working? Light work points to 13 mm, medium to 9.5 mm, hard daily work to 6.3 mm.
Will it live out or be stabled? Turnout favours a longer coat; a stable and a rug wardrobe allow a shorter one.
How many rugs do you own? A short clip needs several weights and a change routine. If that is not realistic, leave more coat.
What coat type? Dense native coats can carry 13 mm comfortably; fine Thoroughbred coats look untidy at that length and often suit 9.5 mm.
Who clips, and how often? If time is short or the horse is clipped every few weeks, a wide blade plus a shorter length saves hours across the season.

After the clip: rugging, regrowth and the next blade

Put a rug on as soon as the horse is dry. A freshly clipped horse loses heat quickly, especially over the back and quarters. Check rug fit daily for the first week; a rub on a freshly clipped coat becomes sore fast.

Regrowth is individual, but most winter clips start to look untidy within a few weeks, with the neck and flanks showing first. Book the next clip before the coat loses its shape rather than after. Keep the blade clean and oiled between sessions; a dirty blade leaves lines and runs hot, which is harder on the horse and on the blade.

Ordering the right ladder

Ningbo FOLK Tools produces the full A5 ladder in one plant: 13 mm 3F and 3FW, 9.5 mm 4F and 4FW, 6.3 mm 5F and 5FW, plus the close 7F and 7FW. Every blade is A5 detachable, full tooth, with a stainless steel comb and a choice of 18-teeth ceramic, 25-teeth ceramic or 22-teeth stainless steel cutter. Blades are packed 100 pieces per carton (38×23×27 cm), with MOQ 100 pcs and 7–15 days lead time on stock items.

Frequently asked questions

What length should I clip my horse in winter?

Match the length to the work. Light work and turnout: 13 mm. Light to medium work with normal rugging: 9.5 mm. Hard daily work and stabling: 6.3 mm. When in doubt, leave more coat and clip again later.

Is 13mm too long for a full clip?

It is a coat-left-on clip rather than a full clip. The horse keeps visible coat and natural insulation. It is ideal for light work and turnout, but too warm for a horse in hard work.

Can I clip a horse that lives out?

Yes, provided the clip leaves enough coat and the rug is appropriate for the weather. A 13 mm or 9.5 mm clip with a suitable turnout rug is a common arrangement; a 6.3 mm clip on a horse living out needs careful rugging.

How long does a winter clip last?

It varies with the horse and the date of clipping. Most clips hold their shape for a few weeks before the neck and flanks start to show regrowth; horses clipped early in the season are usually clipped again before the worst of the weather.

Should I choose the 3F or the 3FW?

Same 13 mm length. The 3FW is wider and faster over the body; the 3F is easier for heads, legs and blend lines. Professional kits often carry both.

Will these blades fit my clipper?

If the clipper uses the A5 detachable system, yes. Andis AGC series, Oster A5 series, Wahl KM series and A5-compatible Heiniger models are supported. The Oster 76 series and livestock shears use a different system.

Stock the three winter lengths from one plant

Ningbo FOLK Tools manufactures the 3F, 3FW, 4F, 4FW, 5F and 5FW in our own plant, with ceramic or stainless steel cutters, your logo on the blade and your own packaging.

3F 13mm blade → 4FW 9.5mm wide blade →