CSJ Crown Drill Bit, 7D Drill Diameter Range 15.00-15.99, Front-Locking Body with Internal Cooling for High-Speed Deep-Hole Drilling, Indexable Insert Drill / Side-Locking Drill Tip

Product Overview

Short Description

The CSJ Crown Drill Bit is a high-performance, front-locking indexable insert drill engineered for precision deep-hole machining. Featuring an advanced internal cooling system and a robust side-locking tip mechanism, this 7D-depth drill body delivers exceptional chip evacuation, high-speed efficiency, and extended tool life across a diameter range of 15.00–15.99 mm.

Product Introduction

Designed to meet the rigorous demands of modern high-speed machining, the CSJ Crown Drill Bit series represents the cutting edge of deep-hole drilling technology. This 7D aspect-ratio drill body combines a secure front-locking insert seat with an easy-to-replace side-locking drill tip. The integrated internal cooling channels deliver high-pressure coolant directly to the cutting edge, effectively reducing thermal stress, minimizing tool wear, and ensuring smooth chip evacuation during heavy-duty operations. It is the ultimate solution for manufacturers looking to reduce cycle times and eliminate the high costs of solid carbide deep-hole drills.

Specifications & Applications

Product Parameters

Key Product Functions

• High-Speed Deep-Hole Penetration: Achieves stable 7D deep-hole drilling without the need for frequent peck-drilling cycles, significantly boosting throughput.

• Superior Thermal Control: Dual internal coolant holes flush out high-temperature chips instantly, preventing work-hardening of the workpiece and overheating of the insert.

• Rigid Clamping & High Accuracy: The dual front- and side-locking design ensures absolute rigidity under high torsional loads, minimizing runout and maintaining tight hole tolerances.

• Cost-Efficient Indexing: Allows operators to replace only the crown drill tip when worn, keeping the durable alloy-steel drill body in service to lower cost-per-hole metrics.

Applied Scenarios

• Automotive Manufacturing: Drills deep oil galleries, engine block coolant lines, and drivetrain components.

• Heavy Industrial Gearboxes & Aerospace: Ideal for machining deep, high-precision structural holes in tough alloys, titanium, and stainless steels.

• Mold & Die Making: Fast, reliable drilling of deep water/cooling lines in complex mold bases.

• General Engineering: Perfect for CNC machining centers, horizontal boring machines, and turning centers handling medium-to-large production runs.