Wholesale 6” TPR Handle 3CR13 Stainless Steel Blade Folding Fillet Knife with Karabiner

The 6 inch Folding Fillet Knife with Karabiner is a practical fishing tool designed for fish cleaning and filleting in both freshwater and saltwater environments. Its folding structure improves safety during transport, while the compact size makes it easy to carry in tackle bags or on fishing belts.

The stainless steel blade offers stable cutting performance for tasks such as fish belly opening, fillet trimming, and small-scale processing at the water’s edge. The flexible design helps anglers handle common species found in rivers, lakes, reservoirs, and coastal areas.

Functional Design for Fishing Applications

• Folding blade structure for safe storage and controlled use
• Carabiner end-loop allows quick attachment to backpacks or gear loops
• Lightweight construction supports long fishing sessions

This folding fillet knife is widely used in

• Freshwater fishing, including lake, river, and stream fishing
• Ocean boat fishing and beach fishing
• Lure fishing, fly fishing, and ice fishing

As a factory-based fishing knife manufacturer, RTI provides this product for OEM, wholesale, and custom branding projects, supporting global customers with stable production and quality control.

Product Specifications

Related Model Comparison

RTI offers two similar folding fillet knife models with the same blade size and material configuration. The main difference lies in the handle-end structure.

RTI-FK91:
This model features an integrated karabiner end-loop. It is suitable for anglers who prefer quick access and tool attachment during fishing. The karabiner allows the knife to be clipped to backpacks, belts, or tackle bags.

RTI-FK90:
This model uses a standard folding handle design without a karabiner. It is suitable for users who prefer a cleaner handle structure or plan to store the knife inside tool boxes or fishing cases.

6 inch Folding Fillet Knife with Karabiner Product Advantages

Folding Structure for Safe Carrying

The folding design reduces exposed blade length during transport. It improves safety and allows convenient storage in compact fishing kits.

Stainless Steel Blade Performance

The 6 inch blade is made of 3CR13 stainless steel, offering reliable corrosion resistance for wet fishing environments. It supports smooth cutting when handling fish skin and flesh during routine filleting and cleaning work.

Ergonomic TPR Handle

The TPR handle provides a secure grip, even with wet hands. The structure allows one-hand operation when folding the blade back into the handle.

Integrated Karabiner Design

The karabiner end-loop makes the knife easy to clip onto fishing bags, belts, or backpacks. It helps anglers keep tools accessible during fishing.

Folding Fillet Knife Manufacturing Process

Blade Material Preparation

We source 3CR13 stainless steel sheets with tightly controlled thickness tolerances suitable for folding knife blades. Our team inspects all incoming materials for surface defects and flatness before cutting.

Blade Blanking and Rough Forming

Blade blanks are produced through stamping or laser cutting, depending on order volume. In this stage, we form the blade outline, pivot hole, and locking interface to ensure dimensional consistency for folding assembly.

Heat Treatment

Blades undergo quenching and tempering to reach a controlled hardness range suitable for fillet knives. This process balances edge holding with flexibility, reducing the risk of brittleness during use.

Precision Grinding and Edge Setting

We grind blade surfaces and cutting edges using CNC or fixture-based grinding equipment. Edge angles remain consistent to support smooth filleting and easy cleaning without excessive resistance.

Folding Mechanism Assembly

We assemble the blade, pivot pin, and handle components with controlled clearances. Folding tension is adjusted to eliminate blade play while maintaining smooth opening and closing during repeated use.

Handle Overmolding and Final Assembly

We mold or assemble TPR handles onto the blade structure. Each unit is checked for grip alignment and folding stability before final fastening.

Surface Finishing and Quality Control

Blades receive surface finishing to improve corrosion resistance. Final inspection includes folding smoothness, blade centering, edge condition, and overall assembly consistency before packaging.