Zhuzhou Delong Metal Materials Processing Co., Ltd.
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Crown drill blade, drill bit, deep hole blade, tungsten steel blade
The Crown Drill Blade—also referred to as a deep hole drill bit insert or tungsten steel blade—is a high-performance cutting component engineered for precision deep-hole drilling. Manufactured from ultra-fine grain tungsten carbide, this blade provides exceptional hardness, heat resistance, and abrasion durability, making it ideal for high-speed drilling in hardened steel, cast iron, and alloy materials.
Its crown-shaped cutting edge design improves chip breaking, reduces cutting resistance, and supports consistent machining performance even in extreme-depth drilling environments. Widely used in industries such as aerospace, automotive, mold manufacturing, and heavy equipment machining, this blade ensures long tool life and superior surface finish.
Premium Tungsten Carbide Material: Ensures extreme hardness, wear resistance, and long tool life.
Crown-Shaped Cutting Edge: Optimized for efficient chip evacuation and minimal vibration.
Ideal for Deep Hole Drilling: Performs reliably in high-aspect-ratio machining operations.
Precision Fit: Compatible with a variety of modular and monolithic drill holders.
PVD/Coated Options: Available with coatings for extended life and improved heat tolerance.
Stable Performance: Reduces deflection and ensures hole straightness and accuracy.
Aerospace Industry: Drilling high-strength alloys in structural components.
Automotive Manufacturing: Deep hole drilling in engine blocks, crankshafts, and suspension components.
Mold & Die Making: Precision hole creation in hardened tool steels.
General Engineering: Suitable for long-depth bores in various industrial machining tasks.
Heavy Machinery: Used in the fabrication of hydraulic cylinders, rotors, and shafts.