CSJ Crown Drill Bit, 7D Drill Diameter Range 38.00-38.99, Front-Locking Body with Internal Cooling for High-Speed Deep-Hole Drilling, Indexable Insert Drill / Side-Locking Drill Tip

CSJ Crown Drill Bit, 7D Drill Diameter Range 38.00-38.99, Front-Locking Body with Internal Cooling for High-Speed Deep-Hole Drilling, Indexable Insert Drill / Side-Locking Drill Tip

$1,216.0000

Short Description

Engineered for demanding deep-hole operations, the CSJ 7D Crown Drill Bit delivers maximum rigidity and precise coolant delivery for holes from 38.00mm to 38.99mm. Featuring a front-locking body with an indexable side-locking drill tip, this high-performance tool ensures rapid chip evacuation, high-speed penetration, and long tool life.

Product Overview

The CSJ 7D Front-Locking Crown Drill Bit is designed for ultra-deep hole drilling applications requiring an L/D ratio of 7x. Its advanced front-locking mechanism provides superior clamping strength and high repeatability, allowing for fast insert changes without removing the tool body from the machine holder. Integrated internal cooling channels route high-pressure coolant directly to the cutting edge, breaking chips effectively and dissipating extreme heat during high-speed deep-hole penetration.

Technical Specifications

Parameter	Specification
Product Series	CSJ Crown Drill Bit
Drilling Depth Ratio	7D (7x Diameter)
Drill Diameter Range	38.00 mm – 38.99 mm
Locking Mechanism	Front-Locking Body / Side-Locking Insert Tip
Cooling Type	Internal Thru-Coolant
Insert Type	Replaceable Indexable Crown Tip
Shank Type	Heavy-Duty Flanged Straight Shank (Side-Lock / Weldon compatible)

Key Benefits & Functions

Deep-Hole Precision: Maintains straightness and strict hole tolerances across deep 7D drilling depths.
Rapid Tool Changes: Front-locking structure enables quick indexable tip replacement directly on the machine setup, minimizing costly downtime.
Optimized Thermal Control: Internal cooling channels blast coolant straight to the point of cut, accelerating chip removal and preventing premature insert wear.
High Structural Stability: Resists severe torsional stress and bending forces under heavy feed rates.

Target Applications

Mold & Die Manufacturing: Deep water-line channels, ejector pin holes, and core cooling lines.
Heavy Machinery & Automotive: Engine blocks, hydraulic cylinders, driveshafts, and structural frames.
Energy & Oil/Gas: Valve bodies, thick flanges, tube sheets, and heat exchanger components.
General Engineering: High-speed, heavy-duty deep hole processing in medium-to-large steel components.