CSJ Crown Drill Bit, 4D Drill Diameter Range 35.00-35.99, Front-Locking Body with Internal Cooling for High-Speed Deep-Hole Drilling, Indexable Insert Drill / Side-Locking Drill Tip

CSJ Crown Drill Bit, 4D Drill Diameter Range 35.00-35.99, Front-Locking Body with Internal Cooling for High-Speed Deep-Hole Drilling, Indexable Insert Drill / Side-Locking Drill Tip

$867.0000

Short Description

The CSJ Crown Drill Bit (4D) is a high-performance, high-speed indexable insert drill engineered for deep-hole drilling (35.00–35.99 mm diameter range). Featuring an advanced front-locking body design and integrated internal cooling channels, it delivers exceptional stability, rapid chip evacuation, and prolonged tool life in heavy-duty industrial applications.

Product Overview

The CSJ Crown 4D Drill Bit represents the next generation of deep-hole drilling technology. Designed with a robust front-locking body and a secure side-locking drill tip, this tool ensures maximum rigidity and minimal runout under high-speed operations.

Its specialized 4D length-to-diameter ratio allows it to penetrate deeply while maintaining tight tolerances. Unlike conventional drills, the indexable crown system eliminates the need for regrinding—simply replace the insert tip to restore brand-new drilling performance, drastically reducing downtime and tooling costs.

Product Parameters

Parameter	Specification
Product Series	CSJ Crown Drill Series
Drilling Depth Ratio	4D (4 $\times$ Diameter)
Diameter Range ( $\emptyset$ )	35.00 mm – 35.99 mm
Locking Mechanism	Front-Locking Body / Side-Locking Drill Tip
Cooling System	Thru-Spindle Internal Cooling (Thru-Coolant)
Insert Type	Indexable Crown Insert
Shank Type	Side-Lock / Weldon Shank (depending on machine adaptation)

Key Functions & Benefits (Product Action)

Internal Cooling for High-Speed Drilling: Specialized internal coolant channels deliver fluid directly to the cutting edge. This rapidly lowers temperatures, lubricates the cut, and forcefully flushes out chips to prevent clogging.
High-Precision Deep-Hole Execution: The 4D configuration easily handles deep boring tasks without compromising structural rigidity or hole straightness.
Dual-Lock Stability: The combination of a front-locking body and side-locking tip minimizes vibrations, leading to superior surface finishes and extended insert longevity.
Cost-Efficient Maintenance: The indexable crown insert structure allows for quick, on-machine tip replacement, ensuring continuous production workflows.

Application Scenarios

The CSJ Crown 4D Drill Bit is ideal for heavy manufacturing sectors requiring precision deep-hole machining:

Automotive & Aerospace: Drilling engine blocks, heavy-duty shafts, and structural components.
Mold & Die Industry: Creating deep coolant lines and core holes in large injection molds.
Energy & Power Generation: Machining tube sheets for heat exchangers, turbines, and oil/gas pipeline flanges.
General Machinery: High-efficiency batch drilling in medium to high-tensile steels, alloy steels, and cast iron on CNC machining centers and high-speed drilling machines.