CSJ Crown Drill Bit, 4D Drill Diameter Range 30.00-30.99, Front-Locking Body with Internal Cooling for High-Speed Deep-Hole Drilling, Indexable Insert Drill / Side-Locking Drill Tip

CSJ Crown Drill Bit (4D Indexable Insert Drill)

Short Description

The CSJ Crown Drill Bit (4D) is a high-efficiency, indexable deep-hole drilling solution featuring a reliable front-locking body and internal cooling channels. Engineered for high-speed performance, it delivers exceptional stability, precise chip evacuation, and extended tool life in demanding industrial machining applications.

 Product Introduction

The CSJ Crown Drill Bit represents the next generation of indexable insert drilling technology. Designed with a 4D usable length (4 times the drill diameter), this tool is optimized for high-speed, deep-hole drilling without sacrificing accuracy.

It features a robust front-locking body coupled with a side-locking drill tip, ensuring absolute rigidity and minimum runout under high torque. With integrated internal cooling channels, the drill delivers coolant directly to the cutting edge, drastically reducing thermal stress and ensuring seamless chip evacuation from deep holes.

 Technical Parameters

 Product Functions & Key Features

• High-Speed Deep Hole Drilling: The 4D length capacity allows for efficient deep penetration while maintaining structural integrity and hole straightness.

• Advanced Internal Cooling: Dual or central internal coolant passages flush chips out immediately, lowering cutting temperatures and preventing premature insert wear.

• Secure Dual-Lock System: The combination of a front-locking body and side-locking tip provides maximum gripping force, preventing insert displacement during heavy-duty operations.

• Cost-Efficient Indexable Design: No need to resharpen the entire drill body; simply index or replace the crown tip, significantly reducing tooling costs and downtime.

Target Applications & Scenarios

This industrial-grade drill bit is ideal for heavy machining environments requiring precise, large-diameter deep holes.

• Applicable Industries: Aerospace, automotive manufacturing, heavy machinery, mold and die production, and oil & gas equipment fabrication.

• Common Workpieces: Machining of engine blocks, large flanges, hydraulic cylinders, tube sheets, and structural steel frames.

• Compatible Machinery: CNC Machining Centers, CNC Boring Mills, Lathes with powered tooling, and specialized High-Speed Radial Drilling Machines.