20oz & 24oz Spider Sinker CNC Aluminum Mold

Cast heavy-duty 20 oz and 24 oz surf fishing spider sinkers (breakaway weights) with this high-precision CNC-machined aluminum mold. Engineered specifically for deep surf casting, ocean pier fishing, and extreme current conditions, spider sinkers feature wire legs that anchor firmly into sandy bottoms to hold your bait in strong ocean surf.

Machined in-house from high-grade solid 6082 aluminum blocks for superior thermal conductivity, zero warping, and fast pouring cycles. Features precision-milled slots designed for #3 brass eyelets (line attachment) and 1/8" stainless steel wire for the anchor legs.

Key Features & Specifications:

• Dual-Weight Cavities: Casts one 20 oz (~567 g) and one 24 oz (~680 g) heavy spider sinker per pour.
• Custom Cavity Options: Need a double 20 oz or double 24 oz layout instead? Contact us before ordering!
• Precision Hardware Slots: Pre-milled top slots hold #3 brass eyes for main line ties, with dedicated channels for 1/8" stainless wire legs.
• Material: CNC-machined from solid thick 6082 structural aluminum blocks for smooth castings and long-term durability.
• Fully Assembled: Comes complete with heavy-duty metal handles and rear hinges for quick alignment and smooth operation.
• Customization: We manufacture custom molds! Contact us for custom leg wire sizes, weight combinations, or special eyelet slots.

What's Included:

• 1x Fully assembled CNC aluminum 2-cavity spider sinker mold with handles and hinges.

Worldwide Shipping:

All molds are made to order and shipped directly via DHL Express with full door-to-door tracking.

Safety Notice: Always wear appropriate protective equipment, heat-resistant gloves, and ensure adequate ventilation when working with molten lead.