The Anatomy of a Pair of Scissors
4. Tension
Adjust the Knob, dial or screw to get the correct tension, to be sure you have the correct Tension, do the following:-
- Hold your scissors by the thumb ring with your left hand with the scissors facing upright in a 12 o’clock position.
- With your right hand, take the finger ring and open the blades to a 45-degree angle. Let go of the ring and let the scissors close by themselves.
- When the blades close, there should be approximately 0.5 inches between them, and if there’s any more or less, the scissors might need tensioning.
- To tighten turn the Knob, dial or screw 'clockwise.
6. Hollow Ground
Both the convex and semi convex scissors will have a hollow grind. Running from the cutting edge to the back of the blade, which is concave or hollowed-out. This reduces friction when the scissors are closing, reducing the force needed to cut, which helps the edge to last longer.
There are three main types of screws and tension systems: Regular Screws, Thumb Screws, and UFO Screws.
Scissor Maintenance
General Maintenence
After use clean dry the apply oil around the pivot area ideally every day..
If possible try not to drop them as this can damage
Tension
Maintaining the correct tension for your scissors, will extend the life of the scissor, this is done via the Pivot or Tension Screw, ideally every week.
Storage
Store your dog grooming scissors closed and in a protective case, a padded scissors wallet or wrap to prevent them from any unnecessary damage. Ideally in a cool, dry place away from any contact with chemicals, dust or humidity.
Types of Scissor Blade Cutting Edge
Bevelled Edged
Semi-Convex Edge
Semi-Convex Edge
A bevel edge, or German edge, is extremely durable. The edge is not as sharp as a convex edge, but the angle of the edge allows for greater longevity. Bevel edged shears are great for blunt cutting but are not suitable for more advanced cutting techniques or finishing work.
Semi-Convex Edge
Semi-Convex Edge
Semi-Convex Edge
This type of edge is very similar to a convex edge, but the blades are sharpened at a lesser degree. These shears are extremely versatile and can be used for everyday cutting and finish work.
Convex Edge
Semi-Convex Edge
Convex Edge
A convex edge is the sharpest, finest edge you can get on any shear and is best used for finishing work. All convex edge shears will have a hone or ride line which give a smooth cut without any blade noise. Lower quality metals cannot hold this type of edge, so they are usually made from higher quality metals.