How often clipper blades need sharpening depends on several things, including:
- how hard the steel is
- your grooming methods
- the type of dog you are grooming
Harder steel blunts more slowly than softer steel and therefore requires sharpening less frequently. However, the harder steel will break more easily if dropped.
If you bath dogs before clipping, blades will last longer before requiring to be sharpened. Dirty hair will blunt blades, including scissors, faster than clean hair.
The next thing to consider is your clientele. Are your clients mostly small house dogs, or large outside breeds. Are they heavy-coated? If so, they may be wallowing in sand or dust, dirtying their coats, which will blunt your blades faster.