Planer knives are tools used for woodworking in the planing process, which have different properties depending on the material they are made of. Here is a brief overview of HSS 18 planer knives%W and HLS 13%Cr:

HSS 18 planer knives%W:

• Material: HSS stands for high-strength steel alloy (High-Speed Steel). In the case of HSS 18%W, this means that it contains about 18% tungsten (W) in its composition.
• Characteristics:
  1. Endurance: HSS 18 planer knives%W are characterized by high strength and hardness, making them suitable for machining hard and difficult-to-plane materials such as hard wood or composite materials.
  2. Heat resistance: Thanks to their tungsten content, HSS knives are resistant to the high temperatures generated during planing, resulting in longer tool life.
  3. Precision: They provide precise and even planing, which is important for demanding applications and precision work.

Planer Knives HLS 13%Cr:

• Material: HLS is a high-strength steel alloy (High-Low-Speed Steel). HLS 13 planer knives%Cr contain about 13% chromium (Cr) in their composition.
• Characteristics:
  1. Corrosion resistance: Thanks to the presence of chromium, HLS 13 knives%Cr are more resistant to corrosion than traditional HSS knives, making them suitable for working in humid conditions or handling materials containing acids.
  2. Endurance: Although slightly smaller than HSS, HLS 13 knives%Cr are still characterized by high strength, which makes them suitable for processing many types of wood and other materials.
  3. Wear resistance: They provide good wear and abrasion resistance, resulting in longer tool life.

Summary:

Both types of planer knives have their uses depending on the specific needs of woodworking. HSS 18 knives%W are ideal for cutting hard materials and precision work, while HLS 13 blades%Cr offer good corrosion resistance, which is important in some operating conditions. The final choice will depend on specific requirements and conditions of use.

HSS 18 material%W	HLS 13 material%Cr