CSJ Crown Drill Bit, 4D Drill Diameter Range 8.00-8.49, Front-Locking Body with Internal Cooling for High-Speed Deep-Hole Drilling, Indexable Insert Drill / Side-Locking Drill Tip

$223.0000

The CSJ Crown Drill Bit (4D, Ø8.00–8.49mm) is a premium high-speed, deep-hole drilling solution engineered for maximum machining efficiency. Featuring an advanced front-locking body and integrated internal cooling (thru-coolant) design, this indexable insert / side-locking drill tip system ensures superior chip evacuation, exceptional structural rigidity, and extended tool life. It is the ultimate choice for manufacturers demanding precision and stability in challenging high-speed deep-hole applications.

Technical Parameters

Parameter	Specifications
Brand / Series	CSJ Crown Drill Bit Series
Drilling Depth Ratio	4D (4 $\times$ Drill Diameter)
Drilling Diameter Range	$\varnothing$ 8.00 mm – $\varnothing$ 8.49 mm
Locking Mechanism	Secure Front-Locking Body
Cooling System	Internal Cooling / Thru-Coolant Design
Insert Type	Indexable Insert / Side-Locking Drill Tip
Shank Type	Side-Locking / Weldon Shank (depending on final adapter)
Application Speed	High-Speed CNC Machining

Key Applications & Uses

This industrial-grade drill bit is designed for high-precision, high-efficiency machining across various demanding sectors:

High-Speed Deep-Hole Drilling: Ideal for CNC machining centers, specialized drilling machines, and automated production lines where 4D depth precision is critical.
Excellent Material Versatility: Optimized for drilling structural steel, alloy steel, stainless steel, and cast iron.
Thru-Hole & Blind-Hole Machining: The internal cooling system flushes chips instantly out of the hole, making it highly effective for deep blind holes without chip packing.
Heavy-Duty Industries: Widely utilized in mold making, automotive manufacturing, aerospace components, and heavy machinery engineering.