One: the blade is dry
This is the first thing to check, and the cheapest. Two drops of clipper oil along the teeth, run the machine for ten seconds, wipe off what did not soak in. The Wahl 4 oz bottle costs about $6.
Two: hair is packed behind the teeth
Brush it out — the Philips HC5630 and HC7650 ship a cleaning brush for this — or use a blade cleaner, which dissolves the paste of sebum and hair that a brush cannot reach. Cleaner and oil are two products doing two jobs, in that order, as oil, clean or replace sets out.
Three: the blade has moved
A blade that has been dropped or over-tightened can sit misaligned, which cuts skin as well as pulling. Most are set with one screwdriver, and the manual shows the alignment.
Four: the guard is not clipped on properly
A guard sitting a fraction proud lifts the blade off the hair. Push it home until it clicks, on both sides. A guard from another brand can sit badly too: a set like the Moser Ermila guards states its fit, Moser / Wahl Ermila, and nothing else.
Five, and only then: the blade is worn
If oiling, cleaning, realigning and reseating all fail, the cutting element has had its life. On professional machines that is a replacement blade rather than a replacement clipper — Panasonic publishes a fifteen-model compatibility list for its Pro X taper blade, for exactly this. Blades are in the clipper blades category, care products in blade care.
Prices quoted in this text were read on 2026-10-12. The live price is at the top of the page.
What people ask about this
How do I know if it is the blade or the oil?
Oil it first and try again. Two drops on the teeth, run the machine for ten seconds, wipe the excess. If the pulling stops, it was not the blade, and you have saved one.
Can a blade be sharpened?
Professional blades can be, and some makers sell the service. On a household clipper the replacement blade usually costs less than the sharpening, and the compatibility list on the maker's page is where to start.
Last reviewed October 12, 2026