Seco 02897862 Solid Carbide Jobber Drill 4.20 Mm

Product Description

The SECO 02897862 is a solid carbide jobber-length drill bit with a 4.20 mm diameter and a 140-degree split-point geometry. It carries an AlCrN (aluminum chromium nitride) coating that improves heat resistance and extends tool life in demanding applications. The straight-cylindrical shank measures 6.00 mm in diameter and fits standard drill chucks and collet holders. At 74.00 mm overall length, this is a right-hand, two-flute spiral drill built for precision hole-making in production machining environments. It is installed and used by machinists, tool-and-die technicians, and CNC operators working in job shops or manufacturing facilities.

This drill is engineered for use in steel, stainless steel, cast iron, and other hard materials — workpiece material codes P, M, K, and H in ISO classification. The SD1105A series targets applications where consistent hole quality and dimensional accuracy are required. A 6xD flute-to-diameter ratio provides a maximum drilling depth of 29.00 mm. Coolant-through is not supported; external flood or mist coolant is the appropriate approach for this design.

Key Features

• Solid carbide construction for rigidity and tool life in hard and abrasive materials
• AlCrN coating increases surface hardness and thermal resistance at the cutting edge
• 140-degree standard point angle reduces thrust force and improves centering on entry
• Right-hand, two-flute regular spiral design for efficient chip evacuation in through and blind holes
• Straight-cylindrical shank at 6.00 mm diameter for direct chuck or collet mounting
• Diameter tolerance class m7 ensures consistent fit in precision bore applications

Compatibility

Designed for use in standard drill chucks and collet holders accepting a 6.00 mm straight-cylindrical shank. Suitable for CNC machining centers, drill presses, and manual machines where 4.20 mm diameter holes are required in steel, stainless steel, cast iron, and hard materials per ISO workpiece material codes P, M, K, and H. Conforms to ANSI standards per specification designation SD1105A.

Installation Notes

Ensure the machine spindle and workpiece are fully secured before tool engagement. Mount the shank in a collet or drill chuck with sufficient grip length to prevent pullout under cutting loads. Carbide drills are brittle — avoid side loading, interrupted cuts without appropriate feed reduction, and contact with hardened fixture surfaces. External coolant should be directed at the cutting zone to manage heat when drilling stainless steel or hard materials.