High-Quality Nitriding Black Spiral Groove Drilling Ladder – Precision & Durability ✔ 100% Brand New & Premium Quality – This HSS4241 spiral groove drilling ladder is built to last, offering professional-grade performance for your drilling needs. ✔ Precision Design – Features a nitrogen-treated surface for enhanced hardness and abrasion resistance, ensuring long-lasting use even under heavy-duty conditions. ✔ Versatile 8-Step Sizing – Includes stepped sizes (10, 15, 20, 25, 30, 35, 40, 45mm), making it perfect for a wide range of drilling applications. ✔ Ergonomic Triangle Round Handle – Provides a secure grip for better control and reduced hand fatigue during extended use. ✔ Spiral Groove Efficiency – The spiral groove design ensures smoother chip removal and faster drilling speeds.
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