Disston Company 119933 Hss Black Oxide Drill Bit 3/16 in

Product Description

The DISSTON COMPANY 119933 is a high speed steel (HSS) black oxide drill bit in jobber length, measuring 3/16 inches in diameter and 3-1/2 inches in length with a straight shank. Designed for general-purpose drilling, the 135-degree split point features four cutting edges that reduce walking on contact and promote fast penetration without a center punch. The black oxide tempering treatment lowers frictional resistance and improves chip flow during drilling, extending usable tool life under normal working conditions. This bit is appropriate for trade and maintenance professionals who need a reliable, single-piece bit for mixed-material tasks on the job site.

The 119933 is well suited for drilling into wood, plastic, wallboard, plywood, soft metals, aluminum, brass, and bronze. It can also be used occasionally in stainless steel and other hard metals where HSS tooling is acceptable. Typical install scenarios include rough-in work, panel fabrication, light metal fabrication, and general maintenance tasks in residential and light commercial environments. The jobber-length shank fits standard 3/8-inch and 1/2-inch keyed or keyless drill chucks.

Key Features

• 135-degree split point with four cutting edges reduces bit walking and improves starting accuracy
• High speed steel construction provides durability across wood, plastics, and soft metals
• Black oxide tempering treatment reduces friction and improves chip evacuation
• Straight shank in jobber length fits most standard drill chucks
• Suitable for occasional use in stainless steel and other hard metals

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with standard 3/8-inch and 1/2-inch drill chucks. Recommended for wood, plastic, wallboard, plywood, soft metals, aluminum, brass, bronze, and occasional use in stainless steel and other hard metals.

Installation Notes

Install and operate this bit using a corded or cordless drill with an appropriately sized chuck. Ensure the bit shank is fully seated and the chuck is tightened before operation. When drilling metals, use appropriate cutting fluid to reduce heat buildup and extend bit life. Inspect the bit for wear or damage before each use and replace if cutting edges are chipped or the point is deformed.