Cle-line C18101 Jobber Drill Bit No 48 Hss 135 Deg

Product Description

The CLE-LINE C18101 is a No. 48 wire-gauge jobber-length drill bit machined from high-speed steel (HSS) with a black and gold oxide coating. It features a 135-degree split-point tip that self-centers on contact, reducing walking and eliminating the need for a center punch on most materials. The regular spiral flute evacuates chips efficiently through the cut. At 2 inches overall length with a 1-inch flute, this bit is sized for the close-quarter drilling common in metal fabrication, HVAC sheet-metal work, electrical rough-in, and general trade applications. Diameter is 0.0760 inches, matching the No. 48 wire gauge standard. Right-hand cutting direction.

This bit is suited for drilling steel and cast iron in light-to-medium production and maintenance environments. The 135-degree split point and heavy-duty HSS construction make it appropriate for hand-held drills and drill presses alike. Typical applications include pilot holes, clearance holes, and tap-prep holes in ferrous metal stock encountered in HVAC, plumbing, and electrical rough-in work. The straight cylindrical shank seats in standard 3-jaw chucks without adapters.

Key Features

• 135-degree split point self-centers on contact and reduces thrust force needed to start the hole
• Black and gold oxide coating provides lubricity and corrosion resistance during dry cutting
• High-speed steel construction maintains hardness at elevated cutting temperatures
• Regular spiral flute design promotes efficient chip evacuation in ferrous materials
• Tapered web configuration adds rigidity and reduces drill deflection
• Diameter tolerance held to +0.0000 to -0.0005 inches for consistent fit in tapped and clearance hole applications

Compatibility

Designed as an OEM-style replacement or stock replenishment bit for any standard 3-jaw chuck drill or drill press accepting a straight cylindrical shank; suited for drilling steel and cast iron per Series 1878 specifications.

Installation Notes

Install in a 3-jaw chuck and tighten securely before operation. Ensure workpiece is clamped or fixtured to prevent rotation during drilling. Operate at speeds appropriate for the material and bit diameter per standard machining tables for HSS tooling in ferrous metals. Inspect the cutting edges before each use and replace the bit if chipping or dulling is observed to avoid workpiece damage or tool breakage.