Mainichi Secateurs These secateurs from Niwaki are made in Japan with carbon steel blades and yellow vinyl covered handle. The secateurs are very similar to the Niwaki GR Pro range but have a slightly different blade shape and also a different grade of steel for the blades. The steel on these secateurs is SK85 carbon steel. The yellow vinyl covered handles are comfortable in the hand and (theoretically) the yellow handle makes them easier to spot when you have put them down somewhere . . . but can't remember where! The maximum cutting diameter when you are using these secateurs for pruning is 10mm. The blades are 55mm in length. For cutting stems or branches of a greater diameter than 10mm you are probably better off using a small saw. Good tools such as these should be well maintained to get the best from them. We recommend sharpening them with a Niwaki #1000 stone and cleaning with Crean Mate, they can then be protected from rust with a drop of Camellia Oil. The secateurs are supp