Sgs 07287 Circuit Board Drill Bit 0.75 Mm Solid Carbide

Product Description

The SGS 07287 is a solid carbide circuit board drill bit designed for precision drilling in printed circuit boards and other tight-tolerance applications. With a 0.75 mm diameter and a 130-degree four-facet point, this bit delivers clean entry holes and reduced thrust force on delicate materials. The uncoated solid carbide construction provides rigidity and edge retention suited for high-speed, small-diameter drilling. The two-flute, regular spiral geometry with a 30-degree helix angle promotes efficient chip evacuation. Licensed electricians, PCB fabricators, and precision machining professionals are the primary installers and users of this tooling.

This bit is suited for drilling through a broad range of materials common in electronics manufacturing and precision fabrication environments. It performs in residential and commercial applications where small-diameter, accurate holes are required. Compatible workpiece materials include aluminum, cast iron, cobalt alloy, copper alloy, fiber-reinforced polymers, nickel, plastics, stainless steel, and titanium. The heavy-duty grade designation makes it appropriate for production environments with repeated cycle demands and tight hole-location tolerances.

Key Features

• 0.75 mm diameter with a tolerance of -0.0003 to +0.0000 inches for tight hole accuracy
• 130-degree four-facet point reduces walking and improves centering on entry
• Solid carbide construction provides superior rigidity over high-speed steel at small diameters
• Uncoated finish maintains sharp cutting edge geometry on non-ferrous and composite materials
• Regular spiral with 30-degree helix angle supports chip evacuation in deep or stacked-material drilling
• Tapered web configuration increases core strength along the flute length

Compatibility

Designed for use with standard 1/8 inch shank collets and precision drill chucks compatible with circuit board drilling machines and CNC micro-drilling equipment. Suitable for workpiece materials including aluminum, cast iron, cobalt alloy, copper alloy, fiber-reinforced polymers, nickel, plastics, stainless steel, and titanium per material application codes K, M, N, P, and S.

Installation Notes

This tooling is installed and operated by machinists, PCB fabrication technicians, or precision trades professionals using appropriate drill presses or CNC equipment. Secure the 1/8 inch shank firmly in the collet or chuck before operation to prevent runout and premature bit breakage. At this diameter, feed rate and spindle speed selection are critical — consult tooling data or the machine manufacturer for appropriate parameters for the target material. Inspect the bit for chipping or wear before each use, as carbide at this diameter is brittle and susceptible to breakage under lateral load.