Published by on 23 de julho de 2026 Hu-Friedy EXD56 #5 Double-ended explorer Ergonomic Satin Steel™ handle New Combination of #17 end for subgingival calculus detection and #23 end for caries detection. Hu-Friedy explorers are hand crafted from Duraspond steel, a specially blended steel alloy which provides flexibility and resilience for even the most precise diagnostic procedures.