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Pros and Cons of CPM S90V

Large Gun Hammer

CPM S90V is a high-end, premium stainless steel known for its exceptional edge retention and corrosion resistance. Developed by Crucible Industries, it is part of the family of super steels and is used in the production of high-performance knives.

CPM S90V is renowned for its exceptional edge retention. It can maintain a sharp edge for an extended period, making it well-suited for tasks that demand prolonged cutting without frequent resharpening.

The steel exhibits high wear resistance, making it well-suited for applications where the blade is subjected to abrasive materials or heavy use.

CPM S90V contains a significant amount of chromium, contributing to its excellent corrosion resistance. This makes it suitable for knives used in environments where exposure to moisture is a concern.

Like other premium steels, CPM S90V has a fine grain structure. This fine grain contributes to its sharpness, allowing for precise cutting performance.

CPM S90V has a high level of hardness, which contributes to its excellent wear resistance and edge retention.

One of the main challenges with CPM S90V is its difficulty to sharpen. The steel’s high hardness and wear resistance can make it more time-consuming and challenging for some users to bring the blade to a keen edge. Specialized sharpening tools or skills may be required.

While CPM S90V is known for its hardness, it can be relatively brittle compared to some other knife steels. This means that it may be more prone to chipping or breakage, especially under heavy lateral stress or when used improperly.

Knives made with CPM S90V are typically more expensive due to the cost of the steel itself and the challenges associated with working with such high-performance materials.

CPM S90V is not as commonly used as some other steels, so knives made with this steel may have limited availability in the market.

In summary, CPM S90V is a premium steel that excels in edge retention, wear resistance, and corrosion resistance. However, its difficulty in sharpening and potential brittleness are factors to consider, and it is often recommended for users who prioritize edge retention and are experienced in maintaining and sharpening high-performance steels.

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Features of Custom Switchblades, Part 2.

Switchblade

Custom switchblades, like other custom knives, can be crafted with a variety of features based on the preferences of the knife maker and the intended use of the knife. Switchblades, also known as automatic knives or push-button knives, have a spring-loaded blade deployment mechanism.

Custom switchblades may incorporate various locking mechanisms to ensure the blade stays securely open during use. Common mechanisms include liner locks, frame locks, button locks, and plunge locks.

A pocket clip is a practical feature for easy and secure carry. Some custom switchblades may have a reversible or adjustable pocket clip to accommodate different carry preferences.

Custom switchblades can be tuned for different opening speeds and deployment forces. Some users prefer a fast, snappy deployment, while others may prefer a more controlled and deliberate opening.

Many custom switchblades feature intricate engravings, personalized markings, or unique finishes on the blade or handle. These artistic touches add to the knife’s aesthetics and make it a distinctive piece.

Some custom switchblades are produced in limited quantities or as one-of-a-kind pieces, making them collectible and unique. Limited editions may include special features or materials not found in regular production models.

It’s important to note that the legality of switchblades varies widely by jurisdiction, so individuals should be aware of and adhere to local laws regarding the possession and use of automatic knives. Additionally, custom knives can be expensive and may require a wait time for the artisan to create the knife to your specifications.

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Features of Custom Switchblades, Part 1.

Switchblade

Custom switchblades, like other custom knives, can be crafted with a variety of features based on the preferences of the knife maker and the intended use of the knife. Switchblades, also known as automatic knives or push-button knives, have a spring-loaded blade deployment mechanism. 

Custom switchblades can have a variety of blade styles, including drop point, tanto, spear point, or modified clip point. The choice of blade style influences the knife’s functionality and intended use.

High-quality steel alloys are often used for custom switchblade blades to provide excellent edge retention, corrosion resistance, and overall durability. The specific steel chosen can vary based on the user’s preferences.

Custom switchblades can feature handles made from a variety of materials, such as different types of metals, exotic woods, G-10, carbon fiber, or even high-quality synthetic materials. The choice of handle material can impact the knife’s aesthetics, weight, and durability.

The design of the handle may include ergonomic features for a comfortable grip. Custom switchblade handles can also be embellished with engravings, textures, or unique patterns to add a personalized touch.

The switchblade’s deployment mechanism is a critical feature. It can be a button, lever, or other mechanism that, when activated, releases the spring and opens the blade quickly. The design and placement of the switch can vary among custom switchblades.

It’s important to note that the legality of switchblades varies widely by jurisdiction, so individuals should be aware of and adhere to local laws regarding the possession and use of automatic knives. Additionally, custom knives can be expensive and may require a wait time for the artisan to create the knife to your specifications.

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What are some popular custom knife types, Part #1?

Lynx Lite

There are countless custom knife types designed to meet specific needs and preferences. Custom knives are often crafted by skilled artisans and knife makers who take pride in creating unique and high-quality blades. 

Bowie knives are known for its distinctive clip-point blade and cross guard, the Bowie knife is a versatile and iconic design often associated with the American frontier.

Tactical knives are designed for military and law enforcement use, tactical knives are built for durability, versatility, and ease of use in various situations.

Bushcraft knives are designed for outdoor activities like camping and survival. They typically have a sturdy, fixed blade and are well-suited for tasks such as carving, chopping, and general camp chores.

Custom hunting knives are designed for field dressing and processing game. They often have a sharp, sturdy blade with a design optimized for skinning and cutting.

Known for their double-edged blades, daggers are designed for stabbing and thrusting. Custom dagger designs can range from historical replicas to modern interpretations.4 Inch Exampes

Custom machetes are designed for cutting through dense vegetation. They typically have a long, broad blade and are popular tools for outdoor activities like camping and trail clearing.

Recognized by its curved, claw-like blade, the karambit is a unique and distinctive knife often associated with martial arts and self-defense.

Remember that custom knives can be tailored to individual preferences, so variations and hybrids of the above types are common. The design, materials used, and craftsmanship can vary significantly among custom knives, making each one a unique piece of functional art.

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Custom Knife Sheaths

Combative Edge SF7 Tanto

A custom knife sheath is a protective cover for a fixed blade knife that is made to fit the specific knife perfectly. It is typically made of leather or Kydex and is designed to be worn on the belt, but can also be worn on the backpack or other gear. Custom knife sheaths are often made by hand and can be very elaborate, with features such as stitching, tooling, and stamping.

Combative Edge SF7 Tanto Sheath
Combative Edge SF7 Tanto Sheath

There are many benefits to having a custom knife sheath. First, it protects the knife from damage, such as scratches and nicks. Second, it makes it easier to carry the knife, as it provides a secure way to attach it to the body or gear. Third, it can add a personal touch to the knife, making it unique and special to the owner.

If you are considering getting a custom knife sheath, there are a few things to keep in mind. First, you need to choose the right material for your needs. Leather is a traditional choice for knife sheaths, but it can be susceptible to moisture damage. Kydex is a more durable material that is less likely to be damaged by water.

Second, you need to decide how you want to carry the knife. If you want to wear it on your belt, you will need to choose a sheath that is designed for belt carry. If you want to carry it on your backpack, you will need to choose a sheath that has a loop or other attachment point for securing it to the pack.

EQUALIZER Fixed Blade Sheath
EQUALIZER Fixed Blade Sheath

Finally, you need to decide on the style of the sheath. There are many different styles of custom knife sheaths available, so you should be able to find one that fits your personality and needs.

Here are some of the most popular styles of custom knife sheaths:

  • Pancake style: This style of sheath is worn horizontally on the belt. It is a good choice for knives that are used for everyday tasks, such as camping and hiking.
  • Belt sheath: This style of sheath is worn vertically on the belt. It is a good choice for knives that are used for heavier tasks, such as hunting and fishing.
  • Neck sheath: This style of sheath is worn around the neck. It is a good choice for knives that need to be accessible quickly, such as self-defense knives.
  • Shoulder sheath: This style of sheath is worn over one shoulder. It is a good choice for long knives, such as machetes and swords.
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How To Create A Custom Knife Sheath

EQUALIZER Fixed Blade Sheath

Creating a custom knife sheath can be a rewarding project, and it allows you to tailor the sheath to the specific size and shape of your knife. Here’s a general guide on how you can make a simple leather sheath for your custom knife:

Materials:

  1. Leather: Choose a quality leather that is thick enough to provide durability but still pliable. Vegetable-tanned leather is a good choice for this type of project.
  2. Leatherworking tools:
    • Cutting mat or surface
    • Utility knife or leather cutting tool
    • Stitching groover
    • Edge beveler
    • Wing divider or compass
    • Hole punch
    • Needles and waxed thread for stitching
    • Ruler or straight edge
    • Sandpaper or burnishing tool for finishing edges
    • Dye or finish (optional)
  3. Fasteners:
    • Snaps, buttons, or rivets for closure (optional)

Steps:

  1. Measure and Design:
    • Measure the length, width, and thickness of your knife.
    • Create a pattern for your sheath by drawing the outline of the knife onto a piece of paper. Add seam allowances and any additional space needed for the knife to slide in and out comfortably.
  2. Cut the Leather:
    • Transfer your pattern onto the leather and cut it out using a sharp utility knife or leather cutting tool. Cut two identical pieces for the front and back of the sheath.
  3. Stitching Groove and Edge Beveling:
    • Use a stitching groover to mark a stitching line along the edges of the sheath, ensuring it is equidistant from the edge.
    • Bevel the edges of the leather to give it a rounded, smooth appearance.
  4. Hole Punching:
    • Use a hole punch to create evenly spaced holes along the stitching line for sewing the sheath together. Ensure the holes on both pieces align.
  5. Stitching:
    • Thread a needle with waxed thread and begin stitching the two pieces together along the punched holes. Use a saddle stitch for durability.
  6. Forming the Sheath:
    • Wet the leather slightly and form it around the knife to create a snug fit. Allow it to dry while still on the knife to maintain the shape.
  7. Finishing:
    • Trim any excess leather and smooth the edges with sandpaper or a burnishing tool.
    • If desired, dye or finish the sheath according to your preference.
  8. Closure (Optional):
    • Add snaps, buttons, or rivets for a closure mechanism if you want to secure the knife in the sheath.

Remember, this is a basic guide, and you can customize it based on your preferences and the specific requirements of your knife. Additionally, safety precautions should be taken when using sharp tools, and it’s a good idea to practice on scrap leather before working on the final piece.

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Metallurgists. Hmmm?

Combative Edge SF7

A metallurgist is a professional who specializes in the field of metallurgy, which is the study of metals and their properties, production, and applications. Metallurgists work with various types of metals and alloys, aiming to understand their behavior, improve their properties, and develop new materials and processes. The role of a metallurgist can encompass a wide range of activities, depending on their area of specialization. Here are some key aspects of what metallurgists do:

  1. Material Analysis:
    • Metallurgists analyze the physical and chemical properties of metals and alloys. This includes studying their microstructures, crystallography, and composition to understand how these factors affect material performance.
  2. Metal Processing:
    • Metallurgists are involved in the design and optimization of processes for extracting metals from ores, refining them, and shaping them into useful products. This can include processes such as smelting, casting, forging, and heat treatment.
  3. Quality Control:
    • Metallurgists play a crucial role in quality control, ensuring that manufactured metal products meet specified standards for strength, hardness, durability, and other mechanical properties. They may use various testing methods and equipment for quality assurance.
  4. Alloy Development:
    • Metallurgists work on developing new alloys with specific properties tailored for particular applications. This may involve combining different metals or adjusting the composition of existing alloys to achieve desired characteristics, such as increased strength or corrosion resistance.
  5. Failure Analysis:
    • When metal components fail or exhibit unexpected behavior, metallurgists conduct failure analysis to determine the root causes. This involves investigating factors like material defects, fatigue, corrosion, or manufacturing issues.
  6. Research and Development:
    • Metallurgists engage in research to advance the understanding of metallurgical principles and develop innovative materials and processes. This can lead to improvements in the performance, cost-effectiveness, and sustainability of metal-based products.
  7. Environmental Considerations:
    • Metallurgists may be involved in environmentally conscious practices, such as developing processes that reduce environmental impact, recycling methods, or finding alternatives to traditional materials.
  8. Consulting:
    • Some metallurgists work as consultants, offering their expertise to industries that use metals. They may provide advice on material selection, process optimization, and troubleshooting.
  9. Education:
    • Metallurgists often contribute to education by teaching at universities or providing training within industries. They may also be involved in mentoring the next generation of metallurgists.

Metallurgists may specialize in different branches of metallurgy, such as physical metallurgy, extractive metallurgy, or process metallurgy, depending on their focus within the field. Their work is essential in various industries, including manufacturing, mining, aerospace, automotive, and materials research.