Description
Product Information
Premium Solid Carbide Internal Coolant Deep Hole Drill
This industrial-grade drill bit is specifically engineered for high-efficiency Deep Hole Drilling (DHD) in demanding materials such as alloy steel, stainless steel, and hardened steel up to HRC 55. Featuring advanced Bronze Nano-Coating and a precision-ground 140° point angle, it eliminates the need for spot holes while maintaining exceptional tool rigidity and concentricity. The integrated twisted internal coolant channels deliver high-pressure fluid directly to the cutting tip, reducing heat by 40–60% and ensuring smooth chip evacuation from holes with depth-to-diameter ratios exceeding 15:1.
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Core Benefits:
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Direct Heat Dissipation: Internal cooling prevents cutting edge cracking by stabilizing temperatures at the hottest parts of the drill.
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Enhanced Chip Evacuation: High-pressure coolant flushes chips out of deep bores, preventing clogging and tool breakage.
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High Productivity: Supports significantly higher cutting speeds ($V_c$) and feed rates ($f$) compared to standard HSS or external-coolant bits.
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Long Tool Life: The combination of sub-micrograin carbide and nano-coating reduces wear and friction, doubling tool life in tough alloys.
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Specifications





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