Jig Head Molds

A jig head mold determines the shape, weight and basic geometry of the finished jig. Do not start by looking only at the number of grams. First decide on the lure type and fishing method, then choose the appropriate head shape and weight range, and finally verify the hook model and size for which the specific mold is designed.

Hook compatibility is just as important as mold weight. The shank groove, eye clearance and bend position are designed around a specific hook geometry. Two hooks with the same numerical size or the same 90° angle may therefore fit the same mold differently. Always follow the compatibility information listed for the exact mold.

One mold may contain several separate cavities and allow you to cast multiple jig-head weights. You do not normally need to fill every cavity at the same time. This makes it possible to produce a range of jig heads for different depths, current strengths or rates of fall while keeping the same general lure setup.

Choose jig-head weight according to fishing conditions, not according to hook size. A lighter head allows a slower fall and more delicate presentation, while deeper water, stronger current or boat drift may require significantly more weight. The same soft plastic lure can therefore be used with several different jig-head weights if the mold allows correct rigging with a suitable hook.

Head shape affects weight distribution, bottom contact and the way the rig behaves during presentation. A round head is a versatile starting point, a football design creates a wider contact surface, while fish-shaped, torpedo and elongated saltwater profiles are intended for specific lure types and presentation styles. No single shape is universally best for every situation.

When choosing a mold, check not only its overall weight range but also the number and arrangement of cavities. Some molds produce several different weights, while others contain two or more identical or closely related cavities. If you want to cast larger quantities of one jig head, cavity count may be just as important as the available weight range.

An important part of the selection process is the angle and geometry of the jig hook. Some molds use classic 90° hooks, while others are designed for 60° hooks, Short Shank models or specialised large saltwater hooks. A 60° or 90° designation alone is not enough – the exact hook series and size always matter.

The same numerical hook size is not a universal dimensional standard. A VMC 3/0, Gamakatsu 3/0 and Eagle Claw 3/0 may differ in shank length, wire diameter, bend shape and eye dimensions. If the mold manufacturer specifies a particular model, do not automatically replace it with another hook of the same numerical size.

Before the first casting, always place the hook into the selected cavity dry, without molten metal. The shank and eye must sit correctly in the prepared grooves and both halves of the mold must close completely without resistance. If the mold does not close correctly, do not force it – first verify the hook model, size and selected cavity.

Compatibility confirmed for one hook size must not automatically be transferred to the entire series. Some molds work with several sizes of the same model, while others are sensitive to shank length or eye position. One example is F155, where VMC 5150 sizes 8/0 and 12/0 are listed as compatible, while 10/0 does not fit because of its different geometry.

Some molds also require additional components to be inserted before casting, such as a soft-bait holder, wire, eye or other metal parts. These components must match the specific mold and must be positioned correctly before the mold is closed. Always check the requirements listed for the individual product.

For light freshwater spinning, the range includes molds in very low weights for UL and finesse jigging. The middle range covers standard zander and pike jig heads, while heavy saltwater molds continue through tens and hundreds of grams to heads designed for deep water and large soft plastic lures. The SAF range includes, for example, 1–10 g UL molds, 150 / 180 g Eel Head designs and 400 / 500 g heavy saltwater jig heads.

Correct compatibility becomes even more important with heavy saltwater jigs. A large hook, high casting weight and large volume of molten metal require the mold to close precisely. A difference of only a few millimetres in shank length or eye position can prevent the mold from closing correctly.

If you plan to powder-coat the finished jig heads, remember that paint can partly block the hook eye or build up around areas where the soft plastic lure is fitted. After coating, always check eye clearance and remove any excess coating before use.

When working with lead or another low-melting metal, wear safety glasses, suitable gloves, long clothing and closed footwear. Work on a stable, heat-resistant surface with effective ventilation. The mold, hooks and all inserted components must be clean and completely dry before they come into contact with molten metal.

Never pour molten metal into a wet or damp mold. Keep water, drinks and damp tools away from the casting area, do not eat or smoke while working and keep equipment used for lead separate from kitchen or household tools. Wash your hands thoroughly after casting and follow the instructions supplied with the metal, mold and melting equipment.

If you already know which soft plastic lure you want to use, start with the correct hook and then choose a mold that supports that exact model and size. If you already own the mold, work in the opposite direction – first check its verified compatible hooks and only then choose the lure and jig-head weight for the intended conditions.

Browse suitable hook models in our jig hooks category. For every mold, always follow the specific information about weight, cavity count and hook compatibility, as these factors are more important for a correct casting than the general jig-head type alone.

Frequently asked questions – jig head molds

How do I choose the correct jig head mold?

First choose the lure type and size, required head shape and weight range. Then verify which jig hook model and size the mold is designed to use.

Does hook size determine jig-head weight?

No. The hook should primarily match the lure and mold geometry. Jig-head weight depends on depth, current, drift, rate of fall and presentation style.

Can I cast several weights from one mold?

Yes, if the mold contains several cavities with different casting weights. The cavities are usually filled separately, so you can normally cast only the weight you need.

Does every 90° jig hook fit a mold designed for 90° hooks?

No. Eye angle is only one dimensional parameter. Shank length, wire diameter, bend position and the size and position of the eye also matter.

Can I replace the recommended hook with another model of the same size?

Not automatically. The same numerical size does not mean identical actual dimensions. Always test the alternative hook dry inside the mold and make sure the mold closes completely.

How should I check the hook before casting?

Place it into the selected cavity dry, check the position of the shank and eye and close the mold. Both halves must meet completely without placing pressure on the hook.

What is the difference between a round and football jig head?

A round head is a versatile design for a wide range of spinning applications. A football head has a wider profile and a different type of bottom contact. Actual behaviour also depends on weight, lure and presentation style.

What jig-head weight should I choose for saltwater fishing?

It depends on depth, current, boat drift and lure size. The aim is not automatically to use the heaviest possible head, but the weight that allows you to reach the working depth while maintaining control of the lure.

Does the mold need to be dry before casting?

Yes. The mold, hook and all inserted components must be clean and completely dry. Contact between water and molten metal is dangerous.

How do I work safely when casting jig heads?

Wear safety glasses, suitable gloves, long clothing and closed footwear. Work on a stable, heat-resistant surface with effective ventilation and follow the instructions supplied with the mold, metal and melting equipment.

→ For correct rigging, choose a suitable jig hook.

→ Choose the mold according to shape, weight and compatibility with the exact hook model.