CSJ Crown Drill Bit, 4D Drill Diameter Range 39.00-39.99, Front-Locking Body with Internal Cooling for High-Speed Deep-Hole Drilling, Indexable Insert Drill / Side-Locking Drill Tip

Short Description

The CSJ Crown Drill Bit (4D) is a high-performance, indexable insert deep-hole drilling solution designed for precision and speed. Featuring a diameter range of 39.00mm–39.99mm, a secure front-locking body, and internal cooling, it delivers exceptional chip evacuation and extended tool life for demanding industrial applications.

Product Introduction

Engineered for maximum efficiency in heavy-duty machining, the CSJ Crown Drill Bit combines the stability of a solid carbide drill with the cost-effectiveness of an indexable system. Its advanced 4D length-to-diameter ratio allows for deep-hole drilling without sacrificing rigidity.

Equipped with an innovative front-locking body and a secure side-locking drill tip, this tool ensures rapid insert replacement right on the machine, minimizing downtime. The integration of internal cooling channels directs coolant straight to the cutting edge, effectively reducing thermal stress, eliminating chip clogging, and guaranteeing a superior surface finish.

Product Parameters

Core Functions & Key Features

• High-Speed Deep-Hole Drilling (4D): Capable of drilling depths up to 4 times its diameter with high penetration rates, maintaining excellent straightness and hole tolerance.

• Advanced Internal Cooling: Dual internal coolant holes deliver high-pressure fluid directly to the cutting zone, lowering temperatures and forcing chips out seamlessly.

• Dual-Locking Stability: Features a robust front-locking body design paired with a side-locking drill tip to prevent insert movement under high torque and heavy feed rates.

• Cost-Efficient Indexable System: No need for regrinding. Simply replace the crown drill tip/inserts to maintain brand-new cutting edges, drastically lowering tooling costs per hole.

Application Scenarios

This drill bit is optimized for heavy-industry manufacturing where precision deep-hole drilling is critical:

• Heavy Machinery & Energy: Drilling large-diameter holes in tube sheets, pressure vessels, and wind turbine components.

• Automotive & Aerospace: High-efficiency machining of engine blocks, landing gear parts, and structural frames.

• Mold & Die Manufacturing: Creating deep core cooling channels in large injection molds.

• General Engineering: Ideal for processing tough materials including carbon steel, alloy steel, cast iron, and stainless steel.