Import 20817 Mechanics Drill Bit 0.173 in Hss Split Point

Product Description

The IMPORT 20817 is a mechanics-length, high-speed steel drill bit designed for general-purpose drilling in metal and ferrous materials. It features a 135-degree split point that self-centers on contact, reducing walking and the need for a center punch. The straight-cylindrical shank seats securely in standard drill chucks. At 3.375 inches overall length with a 2.0625-inch flute length, it is sized for close-quarters work typical in HVAC, plumbing, and electrical rough-in tasks. The oxide finish provides basic surface protection. Right-hand cut with a regular spiral flute pattern and web-thinned construction for reduced thrust when drilling harder metals.

This bit is suited for drilling carbon steel, cast iron, high alloy steel, high tensile strength alloy, stainless steel, and general steel stock. It is appropriate for use in residential and commercial trade applications where a short, maneuverable bit is needed in confined spaces, such as drilling through studs, brackets, strut, or enclosure panels. The mechanics length keeps the bit rigid and reduces deflection compared to jobber-length equivalents, making it a preferred choice for production or repetitive drilling tasks.

Key Features

• 135-degree split point self-centers and reduces drill walk without a pilot hole
• High-speed steel construction handles carbon steel, cast iron, stainless steel, and high alloy materials
• Mechanics length at 3.375 inches overall provides rigidity in tight spaces
• Oxide finish offers basic corrosion and wear resistance
• Web-thinned geometry reduces cutting thrust on harder workpieces
• Straight-cylindrical shank fits standard 3-jaw drill chucks without adapters

Compatibility

Designed as a general-purpose mechanics-length drill bit compatible with any standard keyed or keyless drill chuck accepting a straight-cylindrical shank at 0.173 inch diameter.

Installation Notes

Install and service drill bits with the drill unplugged or the battery removed before changing tooling. Secure the workpiece before drilling to prevent movement and injury. Use cutting fluid when drilling stainless steel or high alloy materials to extend bit life and reduce heat buildup. Inspect the cutting edges before each use and replace bits that show chipping, bluing from overheating, or visible edge wear.