CSJ Crown Drill Bit, 7D Drill Diameter Range 14.00-14.99, Front-Locking Body with Internal Cooling for High-Speed Deep-Hole Drilling, Indexable Insert Drill / Side-Locking Drill Tip

The CSJ Crown Drill Bit is a premium 7D indexable insert drill engineered for high-speed, deep-hole drilling. Featuring an advanced front-locking body design and integrated internal cooling channels, it delivers exceptional stability, rapid chip evacuation, and maximum tool life in the diameter range of 14.00mm to 14.99mm.

Product Introduction

Engineered for demanding industrial manufacturing, the CSJ Crown Drill Bit redefines precision in deep-hole processing. This tool combines the structural strength of a solid drill with the cost-efficiency of an indexable insert system.

Its signature front-locking mechanism ensures rigid tip clamping, preventing deflection and vibration even at high cutting speeds. Equipped with precision-engineered internal cooling holes, the drill delivers coolant directly to the cutting zone, dramatically reducing thermal stress and ensuring seamless chip evacuation. The innovative crown/side-locking tip design allows for rapid insert replacement directly on the machine, minimizing downtime and optimizing your production workflow.

Product Parameters

Product Functions (Product Benefits)

• High-Speed Deep-Hole Execution: The 7D capability allows for deep, precise hole drilling in a single pass without the need for peck drilling.

• Superior Thermal Management: Dual internal cooling channels flush out heat and chips simultaneously, preventing built-up edge (BUE) and premature tool failure.

• Enhanced Hole Accuracy: The rigid front-locking body eliminates vibration, ensuring excellent surface finish, high concentricity, and strict dimensional tolerance.

• Cost-Effective Modular Design: Instead of replacing the entire drill body, you only replace the crown tip, significantly lowering your cost-per-hole.

Application Scenarios

This heavy-duty tool is perfectly suited for high-efficiency CNC machining centers, gantry milling machines, and specialized deep-hole drilling equipment.

• Automotive Manufacturing: Drilling engine blocks, crankshafts, and heavy-duty transmission components.

• Mold & Die Industry: Creating deep coolant/water lines in complex injection molds.

• Aerospace & Defense: Machining high-strength alloys, landing gear structures, and structural frames.

• Heavy Machinery & Energy: Processing tube sheets in heat exchangers, wind turbine hubs, and hydraulic cylinders.

• Compatible Materials: Excellent performance across Carbon Steel, Alloy Steel, Cast Iron, Stainless Steel, and High-Temperature Alloys.