A great DIY haircut with electric clippers starts on clean, dry hair, using the largest guard you think you need, cutting in slow upward strokes against the grain, and finishing with a flicking motion to blend harsh lines.
One wrong move with clippers and a trip to the barber suddenly sounds worth it. But learning how to cut hair using electric clippers is a skill you can master in one session — no professional training needed. The key is preparation, the right guard for the job, and a steady hand. Below, we walk through the entire process, from oiling the blades to checking for even sides, so you never have to guess.
Preparing Hair and Clippers Before the First Cut
Cutting clean dry hair prevents uneven lengths because wet hair lies flatter and springs back differently once dry. Wash and towel-dry your hair, then comb out tangles. This baseline alone eliminates the most common DIY mistake.
How to Oil Clipper Blades for First-Time Use
New clippers need blade oil before they touch your hair — running them dry damages the cutting edge. Work the lever back and forth before turning the clipper on, run it to distribute the oil, then wipe away excess with a clean cloth. If the clipper has no lever, oil the same five points, run it longer to quiet the noise, and wipe.
What Guard Size to Start With
Always start with the largest guard you think you need — usually a #6 or #8 for sides and back. Standard guard numbers range from #3 (short) to #8 (long), and you can always go shorter if you want, but you cannot add hair back. Wahl and Andis guides both recommend erring long on the first pass.
| Guard Number | Approximate Length | Best For |
|---|---|---|
| #3 | 3/8 inch (10 mm) | Very short, close crop |
| #4 | 1/2 inch (13 mm) | Short sides, fade blending |
| #5 | 5/8 inch (16 mm) | Medium-short, tapered sides |
| #6 | 3/4 inch (19 mm) | Starter length for most DIY cuts |
| #8 | 1 inch (25 mm) | Longer hair, first pass for beginners |
Cutting the Sides and Back: Step-by-Step
Cut against the direction of hair growth using slow, upward rocking strokes from the neckline. Braun’s instructions recommend starting at the bottom and working up in 1/4-inch (6 mm) sections, tilting the blade at a slight angle so the cut fades evenly. Andis’s video guide shows the same fundamental motion: keep the clipper flat against the head and move in straight, controlled passes.
How to Fade the Lower Half
Once the sides are uniform, switch to a guard one number lower (e.g., from #6 to #5) and cut only the lower half — from the temple down to the neckline. To remove the harsh line between the two guards, switch back to the longer guard and flick the clipper outward at the line rather than pushing straight up. Skullshaver’s guide highlights this flicking motion as the single biggest difference between a blended fade and a line.
Cutting the Top
Brush the top hair up in straight lines using a comb, then cut along the line of the comb’s teeth. Section off small amounts — about 1/4 inch — and keep a length of already-cut hair pinned against the comb as a guide for the next section. This ensures the top stays even. You can cut parallel to the direction of hair growth for a standard length or angle the clipper for a disheveled, textured look.
Finishing the Neckline and Sideburns
Neaten sideburns by cutting from the bottom upward and using the natural depression below the cheekbone to set the length. For the neckline, start with a grazing cut at the top of the neck hair and cut progressively closer toward the nape — this creates a tapered back that looks intentional rather than blunt.
Checking for Even Length
Comb the hair straight out and grab a horizontal section from the same point on each side using a hand mirror. If both sections look the same length when held side by side, the cut is even. If one side looks longer, go back with the original guard and take another slow pass.
For readers ready to invest in the right tool, our tested roundup of clippers for waves covers models that deliver consistent blending and a smooth finish for textured hair.
Post-Cut Maintenance
After the cut, brush loose hair from the clipper, apply a drop of oil to the blade teeth, and run it for a few seconds to distribute the lubricant. Store the clipper with the guard attached to protect the blade. Oiling after every use — even between cuts — extends the clipper’s life significantly.
| Task | How Often | Why It Matters |
|---|---|---|
| Oil blades | Before every use + after cleanup | Prevents overheating and blade drag |
| Brush debris from teeth | After each cut | Keeps cutting action clean |
| Wipe housing with a damp cloth | As needed | Prevents buildup of hair and dust |
| Disinfect blades with blade spray | Monthly or after shared use | Hygiene and corrosion prevention |
Common Mistakes and How to Avoid Them
The fastest way to ruin a home haircut is working too fast. Slow, even strokes produce consistent length; fast passes create skips and uneven patches. Another frequent mistake is pushing the clipper straight upward during a fade — that creates a visible line. The fix is the flicking motion mentioned earlier. And if you are using a clipper with a lever (like the Andis Ultra Clip), know that pushing the lever “North” maximizes cutting length and “South” shortens it for blending detail work.
FAQs
Should hair be wet or dry when using clippers?
Hair must be completely dry before you start cutting with clippers. Wet hair lies flatter and springs back differently once it dries, so a cut done on damp hair will look uneven within an hour. Always wash, towel-dry, and comb before the first pass.
What guard size should a beginner use?
Start with a #6 or #8 guard, which leaves roughly 3/4 to 1 inch of length. A longer first pass lets you correct mistakes by going shorter on the next pass. Using a #3 or #4 right away risks cutting too short with no room for adjustment.
How do you blend harsh lines between guards?
Switch back to the longer guard and hold the clipper so the blade points slightly outward as you approach the line. Flick the clipper away from the head instead of driving straight up. This softens the transition and removes the hard edge without cutting deeper.
Do you need to oil clippers before every use?
Yes, blade oil should be applied before each cutting session and again after cleaning. The oil reduces friction, prevents the blades from overheating, and extends the life of the clipper. Running dry blades for even one full cut can cause permanent dulling.
References & Sources
- Braun. “How to Use Hair Clippers to Cut Your Own Hair.” Covers preparation, step-by-step cutting, and common mistakes.
- Wahl USA. “Here’s How To Do Your First DIY Clipper Haircut.” Official guidance on guard sizes and cutting technique.
- Skullshaver. “How to Use Hair Clippers at Home.” Step-by-step beginner guide with blending and flicking advice.
- ANDIS. “How To Use Hair Clippers At Home.” Video walkthrough covering lever adjustment and guard attachment.
- Wahl. “How to Prep Your Hair Clipper for First-Time Use.” Official 5-point oiling technique for new clippers.