Value Collection 01167121 No 12 Hss Jobber Drill Bit

Product Description

The VALUE COLLECTION 01167121 is a No. 12 wire size jobber-length drill bit machined from high speed steel (HSS) with a bright, uncoated finish. It measures 0.189 inches in diameter and 3.5 inches overall, with a 2.3125-inch spiral flute length. The 118-degree standard point angle is suited for general-purpose drilling in aluminum and other non-ferrous materials. The straight cylindrical shank seats in standard drill chucks without adapters. Web thinning reduces thrust and improves chip ejection at the cutting tip. This bit is a staple in HVAC, plumbing, and electrical rough-in work where accurate, clean entry holes in soft metals and sheet stock are required.

This jobber drill bit is intended for general-purpose use in light industrial and field-service applications. It is well suited for drilling aluminum sheet, copper tubing flanges, brass fittings, and similar non-ferrous workpieces. The 3.5-inch overall length provides the reach typical of jobber-series bits, making it compatible with standard handheld drills, drill presses, and portable magnetic-base drills. Trades such as HVAC installers, plumbers, and electricians commonly keep wire-gauge bits in this size range for conduit knockouts, sheet metal penetrations, and bracket mounting.

Key Features

• No. 12 wire size (0.189 inches diameter) for precise fractional clearance holes
• 118-degree standard point angle for general-purpose use in aluminum and non-ferrous metals
• High speed steel construction provides adequate hardness for repeated use on soft metals
• Bright, uncoated finish keeps cost low for high-turnover field stock
• Web-thinned, tapered web configuration reduces cutting thrust and improves chip clearance
• Right-hand, regular spiral flute evacuates chips efficiently in through-hole drilling

Compatibility

Designed as a general-purpose jobber-length drill bit suitable for use in any standard drill chuck accepting a 0.189-inch straight cylindrical shank, including handheld drills and bench-mounted drill presses.

Installation Notes

Secure the shank fully in a keyed or keyless chuck before operation and verify the bit runs true before contact with the workpiece. Always use appropriate personal protective equipment including eye protection when drilling metal. Keep drill speed within the recommended range for HSS bits cutting non-ferrous material to avoid overheating and premature wear. Inspect the cutting edges before each use and replace the bit if chipping or dulling is evident.