CSJ Crown Drill Bit, 5D Drill Diameter Range 11.50-11.99, 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 (5D, ⌀11.50–11.99mm) is a high-performance, indexable insert drill engineered for high-speed, deep-hole drilling. Featuring an innovative front-locking body with side-locking drill tips and integrated internal cooling, this tool delivers exceptional chip evacuation, superior hole accuracy, and extended tool life in demanding industrial applications.

Product Introduction

The CSJ Crown Drill Bit redefines efficiency in deep-hole machining. Built with a robust 5D length-to-diameter ratio, it bridges the gap between solid carbide drills and traditional indexable drilling systems.

Its unique front-locking body coupled with a side-locking drill tip ensures maximum clamping rigidity, virtually eliminating vibration even during high-speed operations. Equipped with advanced internal cooling channels, the drill delivers coolant directly to the cutting edge, drastically reducing thermal stress and ensuring seamless chip evacuation. This replaceable crown system allows operators to swap drill tips quickly without removing the tool body from the machine, significantly minimizing downtime.

Product Parameters

Key Functions & Benefits (Product Action)

• High-Speed Deep Drilling: Easily achieves 5D depth at high feed rates without sacrificing structural integrity.

• Internal Coolant Delivery: Direct-to-tip lubrication prevents overheating, prolongs insert life, and flushes chips out of deep holes effortlessly.

• Rigid Clamping System: The combination of front and side locking guarantees high concentricity and prevents tip displacement under heavy axial loads.

• Cost-Efficient Indexability: Instead of replacing the entire drill body, only the crown tip needs changing, drastically lowering tooling costs per hole.

Application Scenarios

This versatile tooling system is ideal for heavy-duty manufacturing sectors requiring precise, deep-hole drilling:

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

• Aerospace & Defense: Machining high-strength alloys, landing gears, and structural frame components.

• Mold & Die Industry: Creating deep coolant lines and ejector pin holes in complex mold bases.

• General Engineering: High-efficiency batch drilling in steel, cast iron, and difficult-to-machine exotic alloys.