Value Collection BS27N0027 No 27 Hss Jobber Drill Bit

Product Description

The VALUE COLLECTION BS27N0027 is a No. 27 wire-size jobber-length drill bit ground from high speed steel (HSS) with a bright, uncoated finish. The 130-degree split-point geometry and web-thinned, tapered web design reduce thrust on entry and help the bit self-center without a pilot hole. At 3 inches overall length with a 1.875-inch flute, this is a standard jobber proportion well-suited to hand-held or bench-mounted drilling operations. The straight cylindrical shank and 0.1440-inch decimal diameter seat directly in standard three-jaw keyless or keyed chucks. Right-hand cutting with a slow spiral flute configuration keeps chips moving efficiently out of the hole.

This bit is sized for light-duty precision drilling in aluminum, copper, brass, and other non-ferrous materials, matching its ANSI general-purpose grade designation. Typical applications include electrical panel work, plumbing bracket fabrication, HVAC sheet-metal and control-cabinet drilling, and general maintenance drilling where a No. 27 clearance or tap-drill hole is required. The slow spiral is particularly effective in softer, gummy non-ferrous materials that tend to load conventional fast-spiral flutes.

Key Features

• No. 27 wire size — 0.1440 inch decimal diameter for precise clearance and tap-drill applications
• 130-degree point angle with web thinning reduces entry thrust and improves self-centering
• High speed steel construction handles general-purpose drilling across non-ferrous workpieces
• Slow spiral flute geometry evacuates chips efficiently from aluminum and soft metals
• Bright, uncoated finish for easy visual inspection of wear and re-sharpening condition
• Straight cylindrical shank fits standard drill chucks without an adapter

Compatibility

Designed as a general-purpose replacement or stock drill bit compatible with any standard three-jaw drill chuck accepting a 0.1440-inch straight shank, including hand drills, drill presses, and CNC or manual machine tool spindles.

Installation Notes

Secure the shank fully in the chuck before drilling and verify concentricity to prevent wandering on small-diameter holes. Always wear appropriate eye protection and secure the workpiece — loose non-ferrous stock can grab and rotate suddenly. Use cutting fluid or lubricant when drilling aluminum to extend bit life and maintain hole quality. Inspect the cutting edges before each use and replace or resharpen if chipping or dullness is present to avoid oversized or out-of-round holes.