Value Collection C87754 Jobber Drill Bit 21/64 in Hss

Product Description

The VALUE COLLECTION C87754 is a high speed steel jobber-length drill bit designed for general-purpose drilling in metal, wood, and composite materials. Ground from M7 HSS stock and finished with a black and gold oxide coating, this bit delivers good heat resistance and corrosion protection in production and maintenance drilling applications. The 135-degree split point starts on contact without a center punch, reducing walking on curved or slick surfaces. The web-thinned, tapered web configuration lowers thrust requirements and helps clear chips efficiently. At 4.625 inches overall length with a 3.3125-inch flute, this is a standard jobber geometry suited to most bench-top and handheld drilling setups.

This bit is used in metal fabrication shops, HVAC ductwork installations, plumbing rough-in, and electrical conduit work where a versatile 21/64-inch diameter hole is required. The right-hand spiral flute and straight cylindrical shank accept any standard three-jaw drill chuck. Its heavy-duty grade rating makes it appropriate for repetitive-use environments such as production lines, service vans, and maintenance facilities where bit longevity under moderate feeds and speeds matters.

Key Features

• 135-degree split point starts on contact, no center punch required
• M7 high speed steel construction for durability in ferrous and non-ferrous materials
• Black and gold oxide coating improves surface hardness and reduces friction
• Web-thinned tapered web reduces drilling thrust and improves chip evacuation
• Straight cylindrical shank fits standard three-jaw drill chucks
• Heavy-duty grade rating for repeated use in production and field service environments

Compatibility

Designed as a standard jobber-length drill bit compatible with any three-jaw drill chuck accepting a 21/64-inch straight shank, including handheld drills, drill presses, and CNC drilling machines.

Installation Notes

Install this bit in a properly tightened three-jaw chuck before applying power. Secure workpieces firmly with a vise or clamps before drilling to prevent rotation and ensure accurate hole placement. Use appropriate cutting fluid when drilling hard ferrous metals to extend bit life and manage heat buildup. Inspect the cutting edges for wear or chipping regularly and replace the bit before edge degradation causes oversized holes or excessive heat.