markers in solid colors (Red/Blue/Black/Green) or custom mixes, perfect for high-frequency use, team workflows, or color-coded projects. - 🕳️ Deep Hole Specialist ✅ 20mm tungsten nib (0.78 inches) reaches 15mm deep holes – mark hidden joints, engine bay parts, or narrow gaps without disassembly, saving 50% time! - 🌧️ All-Weather Durability ✅ IPX5 waterproof ink resists rain and oil. Quick-dry formula (<3 sec) stays crisp on polished metal or greasy surfaces. - 🛠️ Military-Grade Build ✅ ABS shockproof body + anti-slip grip , survives -20℃~80℃ extremes. Nib lifespan: 100,000+ marks (3x longer than average). - 🌐 Universal Hard Surface Mastery ✅ Works on wood, concrete, tile, glass, plastic, and automotive parts. Precision <0.5mm for carpentry, metalwork, or DIY crafts. 📋 Specifications - 🏷️ Product Name : DeepReach Pro Markers (8Pcs/Set) - 📏 Dimensions : 13.7cm L (5.4in/0.45ft)...