CSJ Crown Drill Bit, 4D Drill Diameter Range 29.00-29.99, 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 29.00-29.99, Front-Locking Body with Internal Cooling for High-Speed Deep-Hole Drilling, Indexable Insert Drill / Side-Locking Drill Tip

$631.0000

1. Short Description

High-performance CSJ Crown Drill Bit (4D) engineered for high-speed, deep-hole drilling. Featuring a front-locking body for exceptional stability and an internal cooling system for superior chip evacuation, this indexable side-locking insert drill ensures maximum precision, reduced cycle times, and an extended tool life in demanding machining environments.

2. Product Introduction

The CSJ Crown Drill Bit is a state-of-the-art solution for modern high-efficiency drilling. Built with a robust 4D length-to-diameter ratio, it bridges the gap between traditional solid carbide drills and standard indexable drills.

Its innovative front-locking body paired with a secure side-locking drill tip allows for rapid insert replacement directly on the machine, minimizing downtime. Equipped with advanced internal through-coolant channels, it delivers coolant directly to the cutting edge, drastically reducing thermal stress and ensuring seamless chip evacuation during continuous deep-hole operations.

3. Technical Parameters

Parameter	Specification
Product Type	Crown Drill Bit / Indexable Insert Drill
Drill Diameter Range	$\phi$ 29.00 mm – $\phi$ 29.99 mm
Drilling Depth Ratio	4D (4 $\times$ Diameter)
Locking Mechanism	Front-Locking Body / Side-Locking Drill Tip
Cooling System	Internal Through-Coolant (Thru-Hole Cooling)
Shank Type	Side-Lock Weldon Shank / Cylindrical Shank (optimized for stability)
Applicable Inserts	Replaceable Crown Drill Tips / Indexable Inserts

4. Key Functions & Benefits

High-Speed Deep-Hole Drilling: Easily achieves a 4D depth ratio at high feed rates without sacrificing hole straightness or surface finish.
Superior Rigidity & Precision: The front-locking mechanism combined with side-locking clamping prevents insert movement, eliminating vibration and chatter.
Advanced Thermal Management: Internal cooling dual-streams flush out hot metal chips instantly, protecting both the tool body and the workpiece from heat deformation.
Cost-Efficient Maintenance: Instead of replacing the entire drill body or pausing for regrinding, users can simply swap out the crown insert tip, significantly lowering tooling costs per hole.

5. Application Scenarios

This versatile tooling system is widely used across heavy industries requiring high-precision hole-making:

Automotive & Aerospace: Machining engine blocks, transmission components, and structural frames.
Heavy Machinery & Energy: Drilling large flanges, pressure vessels, tube sheets, and wind turbine components.
Mold & Die Manufacturing: Ejector pin holes and deep core/cavity cooling lines.
Compatible Materials: Highly effective on Carbon Steel, Alloy Steel, Stainless Steel, Cast Iron, and High-Temperature Alloys.
Machine Compatibility: Ideal for CNC Machining Centers, Lathes with live tooling, Boring Machines, and Radial Drills.