Guillotine dog nail clippers give a clean, precise cut. They’re great for taking very thin slices so you can work up to (but not into) the quick. This guide shows you the safest way to use them, with tips for black nails and dewclaws.
Good to know: If your dog’s nails are dry/brittle, cracked, or split, skip guillotines and use a grinder or file instead. Find out more in our article about dry and brittle dog nails.
Tools & Supplies
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- Guillotine dog nail clippers (sharp, good condition)
- Styptic powder (or styptic pencil)
- Dog treats
- Nail file or grinder (to smooth edges)
- Towel or damp cloth (optional: for softening nails)
- Good lighting
Before You Start
- Acclimate: Let your dog sniff the clippers; reward calm behavior.
- Calm setup: Choose a stable surface. If you use a grooming arm/loop, never leave your dog unattended.
- Soften hard nails (optional): After a bath, or wrap paws in damp cloths for ~15 minutes.
- Have styptic ready in case you nick the quick.
Step-by-Step: Using Guillotine Clippers
- Hold the clipper correctly
Place the fixed handle under your thumb and the moving handle under your fingers. This grip gives you a smooth, single squeeze. - Position the nail in the ring
Move fur aside. Insert the nail into the ringlet with the ring opening toward the top of the nail and the blade beneath so you slice from below. - If you can see the quick
Align the ring about 1/16″ before the quick at roughly a 45° angle to the paw. Lightly pre-press to hold position, then make one smooth, firm squeeze. - If you can’t see the quick (e.g., black nails)
Trim very thin slices (~1/16″). Watch the cut face: stop when the center changes from dry/chalky to moist/darker “pulp.” If a darker dot appears inside a lighter circle, you’re at the quick—stop. - Dewclaws
If a dewclaw is very rounded and won’t fit well in the ring, switch to pliers-style clippers, a grinder, or a flat blade nail file for better access. - Smooth the edges
Lightly file or grind the trimmed nail to remove sharp edges and prevent snagging. - Reinforce positively
Praise and treat after each nail or paw to keep the experience positive.
Tips for Black Nails
- Work in good light and take tiny slices.
- Look for the pulp sign (moist/darker center). See
- When in doubt, stop earlier and switch to a grinder to finish.
Common Mistakes to Avoid
- Dull blades → ragged cuts and crushed nails. Keep blades sharp; replace when cuts need extra force.
- Big bites → take thin slices instead.
- Rushing a wiggly dog → pause, reset, or do fewer nails per session.
- Poor angle → follow the nail’s natural taper (~45° to the paw).
If You Hit the Quick (Minor Bleed)
- Stay calm. Apply styptic powder with gentle pressure 10–30 seconds.
- Keep your dog still a few minutes.
- If bleeding hasn’t slowed after 10 minutes, contact your vet.
Aftercare & Maintenance
- Reward generously so the next session is easier.
- Wipe clippers clean; store dry.
- Sharpen/replace the blade when cuts aren’t smooth.
When to Use a Grinder Instead
- Nails are brittle/cracked/split
- Dog is anxious about clipping sounds/feel
- You need fine control right up to the quick
FAQs
How short should I trim?
Stop when you see the pulp sign (moist/darker center). Leave a small safe margin and smooth with a file/grinder.
How often should I clip?
Most dogs do well with every 2–4 weeks. Frequent tiny trims help recede the quick over time.
Left-handed?
Most guillotines are ambidextrous. Prioritize a comfortable, steady grip and clear view of the cut face.
Not sure guillotine clippers are for you? Check out our Dog Nail Clippers Guide and Dog Nail Grinder Guide for more options.