Sgs 51768 Screw Machine Drill Bit 0.1730 in Carbide

Product Description

The SGS 51768 is a screw machine length drill bit engineered for high-performance drilling in demanding shop and production environments. Built from solid carbide with an AlTiN (aluminum titanium nitride) coating, it runs at a 0.1730 inch (wire size 17) diameter with a 145-degree split point for aggressive, self-centering entry. The compact 2.625 inch overall length suits short-coupled drilling operations where rigidity and minimal deflection are critical. Right-hand cut with a regular spiral flute and straight cylindrical shank, this bit is sized and coated for cutting alloy steels and titanium. Machinists and tool-room technicians reach for this bit when production tolerances are tight and tool life matters.

This bit is intended for use in CNC machining centers, drill presses, and production screw machines where screw machine length geometry provides the stiffness needed to hold position in harder workpiece materials. Primary workpiece materials listed by the manufacturer include alloy steels and titanium. The 0.875 inch flute length and maximum drilling depth of 0.7188 inches suit it to through-hole and shallow blind-hole applications. The web-thinned, tapered web design reduces thrust load, easing entry into tough materials without sacrificing edge strength.

Key Features

• Solid carbide construction with AlTiN coating for heat resistance and extended tool life in alloy and titanium workpieces
• 145-degree split point promotes self-centering and reduces walking on entry
• Web-thinned tapered web lowers axial thrust requirements during drilling
• Screw machine length (2.625 inches OAL) delivers maximum rigidity and minimal runout
• Straight cylindrical shank fits standard drill chucks and collet holders without adapters
• Diameter tolerance of +0.0002 to +0.0006 inches supports close-tolerance hole production

Compatibility

Designed as a screw machine length replacement drill bit for production and tool-room applications requiring a 0.1730 inch diameter hole in alloy steel or titanium workpieces; fits any standard drill chuck or collet system accepting a straight shank in this diameter range.

Installation Notes

Installation and use should be performed by a qualified machinist or tooling technician familiar with carbide tooling requirements. Ensure the spindle and chuck or collet are clean and free of runout before seating the shank. Carbide tooling is brittle — do not use in hand-held drilling operations or in machines with excessive spindle play. Follow the machine tool manufacturer and ANSI B94 guidelines for speeds, feeds, and coolant when drilling titanium or alloy steel.