Technical Specifications
Based on the markings in your photo and manufacturer data, here are the key specs for this specific drill body:
- Type: Point drill from the B4017 series.
- Cutting Diameter (\(\phi \)): 23.0 mm (indicated by "$\phi$23" on the body).
- Drilling Depth: 7 x \(D_{c}\) (roughly 161 mm), which is the maximum depth relative to the diameter.
- Shank Diameter: 25 mm (indicated by "F25" in the part number).
- Insert Screw: Uses a Walter FS1401 screw, which requires a T20IP Torx Plus driver.
- Tightening Torque: The recommended torque for the insert screw is 5.0 Nm.
Key Features
- Hard-Nickel Plated Surface: Provides protection against corrosion and wear while improving chip flow during heavy use.
- Optimized Flutes: Designed for efficient chip removal and a strong overall tool body.
- Coolant Through: Many in this series, like similar models found at vbindustrialsupply.com and eBay, feature internal coolant channels to manage heat at the cutting edge. [1, 2, 3]