Firehole Stones (Round Tungsten Beads)

Precision round tungsten beads engineered for consistent sizing, clean bores, and accurate weight. Designed for fly tyers who rely on predictable sink rates and clean, functional profiles. Why This Model Works True-to-size metric diameters for accurate fly proportions Clean, uniform bore for smooth seating on all hook styles Dense tungsten for fast, controlled sink rates Durable finishes in polished, matte, and plated colorways Ideal For Classic nymphs Pheasant tails and hare's ears Midges and micro-nymphs General attractor patterns Slim tactical subsurface designs Specs Material : 100% tungsten Bore : Clean, uniform, precision-drilled Sizes : 2.0 mm, 2.5 mm, 3.0 mm, 3.5 mm, 4.0 mm, 4.5 mm Finishes : Polished, matte, plated Pack Count : 24 (all sizes except 4 mm & 4.5 mm), 18 (4 mm), 12 (4.5 mm) Size Recommendations 2.0 mm - hook sizes #18 - #22 2.5 mm - hook sizes #14 - #18 3.0 mm - hook sizes #10 - #14 3.5 mm - hook sizes #10 - #14 4.0 mm - hook sizes #8 - #12 4.5 mm - hook sizes #4 - #8