Osg 16535715 Jobber Drill Bit 7/32 Inch Hss WD1

Product Description

The OSG 16535715 is a jobber-length twist drill bit designed for high-performance metal drilling in professional and industrial applications. Manufactured from vanadium high speed steel with a WD1 coating, this bit holds a cutting edge longer than standard HSS under heat and friction. The 120-degree split point (S-thinned web) reduces thrust force and allows self-centering on contact, eliminating the need for a center punch in most setups. The straight-cylindrical shank measures 6.00 mm in diameter, compatible with standard drill chucks. Overall length is 101 mm (approximately 3.98 inches) with a 57 mm (approximately 2.24 inches) flute length. The bit weighs 0.035 pounds. Machinists, maintenance technicians, and metalworking professionals are the primary users.

This drill bit is suited for drilling blind holes, cross holes, and through holes in steel, alloy steel, aluminum, aluminum alloy, and aluminum silicate. The regular spiral flute geometry handles chip evacuation efficiently in these materials. It fits into standard jobber-length setups on drill presses, CNC machines, and hand-held power drills. The 7/32-inch (0.2188-inch decimal) diameter falls within the 0.2000 to 0.2500-inch size range, making it a direct fit for applications calling out that fractional size. No coolant-through capability is present, so external coolant or cutting fluid should be used when drilling harder alloys at higher feeds.

Key Features

• Vanadium high speed steel construction with WD1 coating for extended tool life in metal drilling
• 120-degree S-thinned split point enables self-centering and reduces entry thrust
• Right-hand spiral flute with regular helix promotes consistent chip evacuation
• Straight-cylindrical shank fits standard drill chucks without adapters
• Diameter tolerance of plus 0 to minus 0.018 mm supports close-tolerance hole applications
• Rated for blind hole, cross hole, through-hole, and self-centering drilling operations

Compatibility

Designed for use in steel, alloy steel, aluminum, aluminum alloy, and aluminum silicate workpieces. Compatible with any standard drill chuck accepting a 6.00 mm straight-cylindrical shank. Suitable for drill presses, hand-held power drills, and CNC equipment in the 0.2000 to 0.2500-inch drill diameter range.

Installation Notes

Secure the straight shank fully in the drill chuck before operation and verify concentricity if using in a CNC or drill press application. Power down and de-energize any machine tool before changing bits. External cutting fluid is recommended when drilling harder steels or aluminum alloys since this bit does not support coolant-through delivery. Follow applicable OSHA and machine-tool manufacturer guidelines for spindle speed and feed rate selection.