How to Use Trimmers | Grooming and Garden Basics

For the full breakdown, see our best Female Pubic Trimmer guide.

How to Use a Facial or Body Grooming Trimmer

Personal grooming trimmers work best when you prepare the skin first and let the blade do the work. Wash and dry the area. For body hair, Philips recommends beginning at a high length setting and reducing gradually—never start with the shortest guard. Attach the largest guide comb, keep the flat side flush against the skin, and move the trimmer gently and steadily against the direction of hair growth. Use light pressure; pressing harder does not make the cut cleaner and can cause irritation. Shake hair out of the chamber and comb as you go. After finishing, detach the comb and rinse the head or clean it with the included brush.

For a closer trim—around 0.5 mm or to clean up a neckline—remove the comb. Hold the trimmer at 90 degrees to the skin, pull the skin tight to avoid nicks, and use short, controlled strokes. Without the comb, the blade removes every hair it touches. If a close cut around sensitive areas feels intimidating, a dedicated body trimmer is often safer than a standard beard clipper. For well-reviewed options, see our guide to the best female pubic trimmers.

Technique for Waterproof and Wet-Dry Groomers

Waterproof trimmers allow cutting on wet or dry skin. Meridian’s instructions explain that wet skin is softer, so the trimmer glides more easily, but pressing too hard still risks irritation. Choose a guide comb, trim with the flat side parallel to the skin, and keep the tool moving. If hair is long, pre-trim with a larger comb first. Wash the area with soap before starting—lubrication helps and removes surface bacteria that can cause bumps. Rinse the trimmer under running water afterward and let it dry fully before storing.

How to Use a String or Grass Trimmer in the Garden

Garden trimmers handle edges and tall spots a lawn mower cannot reach. Keep the head parallel to the ground and use smooth, sweeping motions. Always wear safety goggles, sturdy shoes, trousers, and gloves.

Basic Strimmer Technique

Clear the area of stones, sticks, and debris first. Hold the machine with both hands, keeping the trimming head parallel to the ground. Work in smooth, semi-circular motions, swinging left to right and back. Start near edges and obstacles, then work forward. For tall grass or thick weeds, cut the top half first, then go lower on the second pass to prevent snagging and reduce motor strain. Do not angle or tilt the head toward the ground—this scalps the earth and creates bare patches. If the line breaks, turn the machine off before checking the spool. Electric trimmers work best in dry conditions.

Common Mistakes and Safety Reminders

Most errors come from rushing. For grooming trimmers, the biggest mistake is starting with a guard that is too short; always begin with the longest comb and step down. Second: pressing too hard—blades do not cut deeper with more force, only tug and irritate. Clean the comb and chamber immediately after each use to prevent clogging. For a garden trimmer, avoid tilting the head and rushing through large tufts; cut in several passes. Store the machine with the spool removed or covered to prevent the line from drying out.