CSJ Crown Drill Bit, 7D Drill Diameter Range 37.00-37.99, Front-Locking Body with Internal Cooling for High-Speed Deep-Hole Drilling, Indexable Insert Drill / Side-Locking Drill Tip

The CSJ Crown Drill Bit (7D) is a high-performance indexable insert drill engineered for precision deep-hole machining up to seven times its diameter. Featuring a front-locking body design with integrated internal cooling, it ensures exceptional chip evacuation, extended tool life, and maximum efficiency in demanding high-speed drilling applications.

Product Overview

Designed for industrial-grade performance, the CSJ Series Crown Drill Bit combines high rigidity with a side-locking tip mechanism to deliver smooth, accurate deep-hole drilling. Its internal coolant channels deliver high-pressure fluid directly to the cutting edge, reducing thermal build-up and facilitating rapid chip disposal. The quick-change front-locking system allows for swift tip replacements, minimizing spindle downtime and maintaining continuous high-speed operations.

Product Specifications

Key Functions & Capabilities

• Efficient Deep-Hole Machining: Handles stable high-speed drilling up to 7D depth without structural deviation or chatter.

• Superior Thermal Management: Through-body internal coolant lines flush chips out rapidly while suppressing heat build-up.

• Quick-Change Rigidity: The front-locking mechanism guarantees high clamping force and precise tip positioning while allowing fast insert replacement directly on the machine.

• Cost-Effective Tooling: Indexable tip design reduces overall tooling costs by reusing the drill body and replacing only the cutting edge.

Application Scenarios

• Heavy Equipment & Automotive: Machining engine blocks, drive shafts, and hydraulic valve bodies.

• Aerospace & Energy: Precision deep-hole drilling in high-strength alloys, turbine components, and structural plates.

• General Mold & Die Manufacturing: Deep coolant hole creation and heavy-duty plate drilling on CNC machining centers and lathes.