The Troutline Premium Micro Slot Tungsten Beads are engineered for fly tiers who want precise weight distribution, secure fit on small hooks, and optimal performance in modern fly patterns. These beads feature a narrow, micro slotted opening that allows you to use larger bead sizes on smaller hooks without the risk of them sliding off the eye—something standard slots can’t always guarantee.
Ideal for barbless jig hooks and curved nymph hooks, the micro slot design ensures better balance and fly profile, especially in Euro nymphing and Perdigon-style patterns where weight and slimness are key. Crafted from high-purity tungsten (97–99.7%), these beads provide exceptional density for fast sink rates and improved strike zone control.
Key Features:
- Micro Slotted Design – Allows heavier beads on smaller hooks without slipping
- High-Density Tungsten – Faster sink rate and tighter presentation compared to brass
- Smooth, Durable Finish – Resists chipping and keeps color vivid
- Ideal for Competition Flies – Euro nymphs, Perdigons, Czech & French patterns
- Slim Profile – Helps maintain natural taper and proportions in small nymphs
Technical Details:
- Slot Type: Micro Slot (Slim Cut)
- Quantity: 25 beads per bag
- Material: 97–99.7% pure tungsten
- Available Size: 2.5mm
- Compatibility: Barbless jig hooks, curved or fine-wire nymph hooks
A must-have for serious fly tiers who want more control, stealth, and effectiveness in every cast.
Why Micro Slot Beads?
Micro slot tungsten beads offer superior compatibility with small, modern hook designs. The narrower slot ensures the bead stays in place even when mounted on fine-gauge wire hooks, allowing tiers to use heavier beads on smaller flies—perfect for fast-flowing rivers, deep pools, or tight-line nymphing. This design also improves fly durability and presentation by centering the bead and maintaining the fly’s natural silhouette.
