Seco 02898371 Screw Machine Drill Bit 12.9mm Carbide

Product Description

The SECO 02898371 is a screw machine length drill bit designed for precision drilling in metalworking and machining applications. Built from solid carbide, it features a 140-degree point angle with web thinning for reduced thrust and cleaner entry. The bit measures 12.9 mm in diameter with an overall length of 107 mm (4.21 inches) and a flute length of 60 mm. A straight-cylindrical shank with a 14 mm diameter ensures secure chuck engagement. Coolant-through capability makes this bit well-suited for high-speed or deep-hole drilling operations where heat management is critical. It is part of the SD1103A series and conforms to DIN standards.

This drill bit is intended for use in CNC machining centers, drill presses, and screw machine setups where shorter flute-to-diameter ratios improve rigidity and hole quality. The 3xD flute-by-diameter ratio and universal tool performance rating make it appropriate across a range of workpiece materials. Right-hand cut with a spiral flute geometry supports efficient chip evacuation. Machinists and tool-and-die professionals working in production environments will find the web-thinned point reduces walking and improves concentricity on entry. Maximum drilling depth is 43 mm.

Key Features

• Solid carbide construction for rigidity and wear resistance in demanding machining environments
• 140-degree point angle with web thinning reduces entry thrust and minimizes bit walking
• Coolant-through design supports effective heat dissipation during high-feed or deep drilling
• Straight-cylindrical shank at 14 mm diameter for reliable chuck or collet holding
• Screw machine length (3xD flute ratio) provides added rigidity over jobber-length alternatives
• Conforms to DIN standards; UNSPSC Code 23241635

Compatibility

Designed as an OEM-style replacement or direct-fit tooling option for screw machine and CNC drilling setups requiring a 12.9 mm solid carbide drill bit with a straight-cylindrical shank in the SD1103A series.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians. Ensure the machine spindle is fully stopped and locked out before changing tooling. Confirm chuck or collet bore matches the 14 mm shank diameter to prevent runout. When using the coolant-through feature, verify that the machine's internal coolant system is properly pressurized and connected before beginning the drilling cycle.