CSJ Crown Drill Bit, 4D Drill Diameter Range 31.00-31.99, 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 31.00-31.99, Front-Locking Body with Internal Cooling for High-Speed Deep-Hole Drilling, Indexable Insert Drill / Side-Locking Drill Tip

$685.0000

Short Description

High-performance CSJ Crown Drill Bit (4D) engineered for high-speed, deep-hole drilling. Featuring a front-locking body with internal cooling, this indexable/side-locking drill tip system ensures maximum stability, superior chip evacuation, and exceptional precision across a 31.00–31.99 mm diameter range.

Product Introduction

The CSJ Crown Drill Bit (4D Series) represents the next generation of heavy-duty hole-making technology. Designed for demanding industrial machining, it combines the rigidity of a solid carbide drill with the cost-efficiency of an indexable system.

Equipped with an advanced front-locking body structure, it allows for fast and secure insert replacements directly on the machine, drastically minimizing downtime. Its specialized internal cooling channels deliver high-pressure coolant straight to the cutting edge, effectively reducing thermal stress and ensuring seamless chip evacuation during high-speed, deep-hole operations.

Technical Parameters

Parameter	Specification
Product Model	CSJ Crown Drill Bit (4D)
Drilling Diameter Range	$\varnothing$ 31.00 mm – 31.99 mm
Drilling Depth Ratio	4D (4 $\times$ Diameter)
Locking Mechanism	Front-Locking Body / Side-Locking Drill Tip
Cooling System	Through-Tool Internal Cooling (Thru-Coolant)
Insert Type	Indexable / Replaceable Crown Insert

Product Functions & Benefits

High-Speed Deep-Hole Drilling: Optimized 4D depth capability allows for rapid penetration while maintaining strict hole straightness and dimensional accuracy.
Advanced Internal Cooling: Dual internal coolant holes flush out chips instantly and lower cutting temperatures, significantly extending tool life.
Front-Locking System: Engineered for maximum clamping rigidity, preventing insert displacement under high-torque conditions while enabling quick changeovers.
Cost-Efficient Indexable Design: No need to regrind the entire drill; simply replace or rotate the crown insert, drastically reducing tooling costs per hole.

Applications

This industrial-grade drill bit is highly versatile and compatible with CNC Machining Centers, Gantry Milling Machines, and Radial Drilling Machines.

Target Industries:

Automotive & Aerospace: Machining engine blocks, heavy powertrains, and structural components.
Energy & Power Generation: Drilling tube sheets, wind turbine hubs, and oil/gas valves.
Heavy Machinery: Manufacturing hydraulic cylinders, molds, dies, and large structural steel frameworks.
General Engineering: High-efficiency batch drilling of medium-to-hard alloys, carbon steel, and cast iron.