Sgs 66494 Screw Machine Drill Bit 13.50mm Solid Carbide

Product Description

The SGS 66494 is a screw machine length drill bit engineered for high-performance drilling in production and maintenance environments. Built from micrograin solid carbide and coated with Ti-NAMITE-X, it delivers extended tool life and heat resistance in demanding applications. The bit measures 13.50 mm (0.5315 inches) in diameter with a 135-degree split point and an overall length of 107 mm (4.2126 inches). The web-thinned point reduces thrust and improves chip evacuation. Coolant-through capability supports high-speed operations where thermal management is critical. This bit is suited for machinists, toolroom technicians, and production drilling operators working with precision metal removal requirements.

The SGS 66494 is designed for universal workpiece materials, making it applicable across a wide range of ferrous and non-ferrous metals in manufacturing, job shop, and MRO settings. The screw machine length profile keeps the bit compact and rigid, which is well-suited for drill press, CNC machining center, and gang drilling operations where stub-length reach is preferred. The 2-flute spiral design with a regular helix promotes consistent chip flow throughout the 60 mm (2.3622 inch) flute length. The Series 142P designation identifies this as part of the SGS high-performance carbide drill family conforming to DIN 6537.

Key Features

• Micrograin solid carbide construction for rigidity and edge retention in hard materials
• Ti-NAMITE-X coating provides enhanced wear resistance and lubricity
• 135-degree split point with web thinning reduces entry thrust and improves centering
• Coolant-through design supports high-feed and deep-hole drilling cycles
• 4-margin geometry improves hole finish and dimensional accuracy
• Conforms to DIN 6537 specification for dimensional consistency

Compatibility

Designed as a high-performance OEM-style replacement or new-installation drill bit for production drilling applications requiring a 13.50 mm screw machine length carbide bit with a straight-cylindrical shank. Compatible with tool holders accepting a 14.00 mm (0.6200 inch) straight shank.

Installation Notes

Installation and use should be performed by qualified machinists or toolroom personnel familiar with carbide tooling. Ensure the machine spindle and tool holder are clean and free of runout before seating the shank. Carbide tooling is brittle and should not be subjected to interrupted cuts or side loading beyond its rated geometry. Always verify coolant flow before initiating a drilling cycle when using the coolant-through feature.