Industrial Solid Carbide Coolant-Through Twist Drill Bit for CNC Machining

Unleash High-Feed CNC Machining with Ultimate Thermal Control and Precision

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Specifications

Product Name	OEM Solid Carbide Coolant-Through Twist Drill Bit (CNC Precision)
Tool Type	Internal Coolant Tungsten Carbide Drill Bit
Material	Ultra-Fine Microcrystalline Tungsten Steel (Hardness > HRA92)
Cooling System	Dual Internal Coolant Channels (High-pressure through-coolant)
Surface Coating	AlTiN / TiSiN High-Performance Coating (Customizable: DLC, Nano, Diamond)
Machining Capability	High-feed machining (Rotational speeds up to 200m/min+)
Hole Finish Quality	Enhances hole wall smoothness to Ra ≤ 0.8µm
Target Application	CNC Machining Centers: Stainless steel, Titanium alloys, Cast iron, Hardened steel
Brand Name	Xiaoman Tools
Manufacturer	Shanghai Daoge Xiaoman Tools Co., Ltd.
Customized Support	100% OEM/ODM (Custom specs, PP tube packaging, specialized coatings)

Why buyers pick this one

Internal Coolant Delivery: Eliminates the traditional problem of poor chip evacuation and overheating in deep holes. High-pressure coolant forces chips back up the flutes instantly, drastically extending tool lifespan.
Ultra-Fine Tungsten Carbide: The HRA92+ base material supports extreme rotational speeds (200m/min or higher) and high-feed machining, dramatically reducing cycle times and frequent tool replacement costs.
Precision Hole Quality: The rigid solid carbide construction combined with optimized cutting geometry suppresses vibration, achieving exceptionally tight tolerances and a smooth Ra ≤ 0.8µm finish, often eliminating the need for a secondary reaming pass.
High-Performance Custom Coatings: We match the coating to your material. Our standard bronze-tinted AlTiN/TiSiN coatings are unparalleled for high-heat steel and titanium machining, while we offer specialized DLC (Diamond-Like Carbon) coatings for aluminum applications.
Direct OEM Manufacturing: Produced on dedicated CNC grinding lines, so you get consistent geometry batch after batch — with your own branding and packaging on request.

Overview

Engineered strictly for high-performance CNC machining centers, the Coolant-Through Solid Carbide Drill Bits from Shanghai Daoge Xiaoman Tools Co., Ltd. are built to dominate the most demanding production environments. Crafted from ultra-fine grain Microcrystalline Tungsten Steel (Hardness exceeding HRA92), these bits offer a 30% increase in wear resistance over standard carbide. The defining feature is the Efficient Internal Cooling System. Dual microporous coolant channels run the entire length of the drill, delivering high-pressure coolant directly to the cutting edge. This rapidly dissipates cutting heat, blasts away chips, and prevents workpiece thermal deformation. The optimized structural design also acts as a vibration dampener, reducing machining noise by 15-20dB and delivering a mirror-like hole wall finish of Ra ≤ 0.8µm. Perfect for continuous, high-efficiency processing of stainless steel, titanium alloys, and hardened cast iron. Available for global OEM distribution with a wide range of specialized coatings (AlTiN, TiAlN, TiSiN, DLC, etc.).