Sgs 66483 Screw Machine Drill Bit 7/32 in Solid Carbide

Product Description

The SGS 66483 is a solid carbide screw machine length drill bit designed for high-performance drilling in a wide range of workpiece materials. With a 7/32 inch (0.2188 inch) diameter and a 137-degree drill point angle, this bit delivers accurate, aggressive entry geometry suited to demanding production and maintenance environments. The overall length is 4.0157 inches, and the flute length runs 2.1654 inches, giving it a compact stub-length profile that reduces deflection and improves hole position accuracy. The proprietary coated finish extends tool life and supports chip evacuation. This bit is handled by machinists, tool-and-die technicians, and maintenance mechanics working with CNC or manual drill presses and lathes.

The SGS 66483 fits production drilling applications where a short, rigid drill is preferred over jobber-length bits. Its screw machine length profile makes it well suited to close-tolerance work in metal fabrication shops, maintenance facilities, and automated machining cells. The coolant-through design supports through-spindle coolant delivery, making it compatible with CNC machining centers equipped with internal coolant supply. The straight cylindrical shank seats directly into standard drill chucks and collet-style toolholders.

Key Features

• Solid carbide micrograin construction for rigidity and wear resistance in high-cycle applications
• Coolant-through design supports internal coolant delivery on equipped spindles
• 137-degree split-point geometry with web thinning for fast engagement and reduced thrust force
• 4-margin configuration improves hole roundness and surface finish
• Regular right-hand spiral flutes with 3xD flute-to-diameter ratio for efficient chip evacuation
• DIN 6537 specification compliance for standardized toolholder compatibility

Compatibility

Designed as a screw machine length drill bit for use in standard straight-shank drill chucks and collet toolholders. Suitable for universal workpiece materials as noted in Series 142P specifications. No specific machine model compatibility was provided in product data.

Installation Notes

Installation and tool changes must be performed with the spindle stopped and the machine in a safe, locked-out state per applicable shop safety procedures. Seat the straight cylindrical shank fully in the chuck or collet before tightening to the toolholder manufacturer's recommended clamping specification. When using the coolant-through feature, verify that the machine spindle coolant pressure and flow rate are within the toolholder and bit manufacturer guidelines before running. Inspect the cutting edges and margins for chipping before each use; carbide tools are brittle and should not be dropped or subjected to side-load impacts.