CSJ Crown Drill Bit, 4D Drill Diameter Range 27.00-27.99, Front-Locking Body with Internal Cooling for High-Speed Deep-Hole Drilling, Indexable Insert Drill / Side-Locking Drill Tip

Product Short Description

The CSJ Crown Drill Bit (4D) is a high-efficiency indexable insert drill designed for high-speed, deep-hole drilling. Featuring a 27.00mm–27.99mm diameter range, a secure front-locking body, and an advanced internal cooling system, this side-locking drill tip delivers exceptional stability, rapid chip evacuation, and prolonged tool life in heavy-duty industrial applications.

Product Introduction

Engineered for precision and high productivity, the CSJ Crown Drill Bit represents the next generation of deep-hole drilling technology. Its 4D depth capability (4 times the drill diameter) makes it ideal for challenging machining depths.

The innovative front-locking body mechanism coupled with a side-locking drill tip guarantees maximum rigidity, minimizing vibration even under high-feed conditions. Equipped with state-of-the-art internal cooling channels, this tool delivers coolant directly to the cutting edge. This effectively lowers temperatures, prevents thermal deformation, and forces chips out of the hole smoothly to avoid jamming. With its exchangeable crown/indexable system, operators can replace worn tips instantly, drastically reducing downtime and tool inventory costs.

Product Parameters (Specifications)

Key Product Benefits & Features (Product Actions)

• High-Speed Deep Drilling: Easily achieves stable 4D-depth holes at elevated cutting speeds.

• Superior Internal Cooling: Delivers targeted coolant pressure directly to the cutting zone, ensuring excellent heat dissipation and seamless chip evacuation.

• Rigid Front- & Side-Locking: The dual-stabilizing locking mechanism eliminates radial deflection, ensuring perfect hole roundness and strict dimensional accuracy.

• Cost-Efficient Indexable System: No need to regrind the whole drill bit. Simply replace the crown tip, lowering your cost-per-hole significantly.

• Extended Tool Life: Reduced friction and thermal stress mean both the drill body and the inserts last substantially longer.

Application Scenarios

The CSJ Crown Drill Bit is highly versatile and engineered for heavy-machinery industries, including Automotive manufacturing, Aerospace, Oil & Gas, Wind Power, and Heavy Mold/Die making.

Suitable Machinery

• CNC Machining Centers (with thru-spindle coolant capabilities)

• CNC Lathes and Turning Centers

• Deep-Hole Boring Machines

• Gantry Milling Machines

Target Materials

• Steel: Carbon steel, alloy steel, and die steel (e.g., P20, H13).

• Stainless Steel: 304, 316, and duplex stainless steels.

• Cast Iron: Grey iron and ductile/nodular cast iron.

• High-Temperature Alloys: Titanium and nickel-based alloys (with optimized insert grades).