Sgs 51338 Solid Carbide Screw Machine Drill Bit No. 7

Product Description

The SGS 51338 is a solid carbide screw machine length drill bit designed for high-performance drilling in demanding materials. Built to Series 135 standards, it features a 145-degree notched point with web thinning for reduced thrust and faster penetration. The AlTiN (Ti-NAMITE-A) coating provides heat resistance and extended tool life when cutting alloy steels and titanium. At 2.625 inches overall length with a 1-inch flute, this stub-length geometry delivers rigidity and accuracy in production drilling environments. It is installed and used by machinists, tool-and-die professionals, and precision fabricators.

The SGS 51338 is suited for drilling alloy steel and titanium in CNC machining centers, drill presses, and production screw machine operations. Its screw machine length profile fits standard tooling setups where shorter drill length reduces deflection and improves hole location accuracy. The straight shank accommodates standard drill chucks and collet holders. This bit is a practical choice for shops running tight-tolerance holes in hard or abrasive workpiece materials.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• AlTiN (Ti-NAMITE-A) coating for elevated heat resistance and extended tool life
• 145-degree notched point with web thinning reduces entry thrust and improves chip flow
• Regular spiral flute, 3xD flute-to-diameter ratio for effective chip evacuation
• Two margins for consistent hole quality and straightness
• Straight shank at 0.25 inches diameter fits standard chucks and collet holders

Compatibility

Designed as a screw machine length drill bit for use in CNC machining centers, drill presses, and production drilling applications targeting alloy steel and titanium workpieces; compatible with standard straight-shank drill chucks and collet systems accepting a 0.25-inch shank diameter.

Installation Notes

Installation and use should be performed by qualified machinists or tooling professionals. Secure the straight shank fully in the chuck or collet before operation and confirm runout is within acceptable tolerance for the application. Power down and lock out all machine energy sources before changing or inspecting the bit. Do not exceed the tool manufacturer's recommended speed and feed parameters for the workpiece material being drilled.