Cleveland C72144 Jobber Drill Bit No 44 Hss 0.0860 in

Product Description

The CLEVELAND C72144 is a jobber-length drill bit in wire gauge size No. 44, designed for general-purpose drilling in metal, wood, and plastics. Manufactured from high speed steel with a bright uncoated finish, it delivers solid performance in production and maintenance drilling applications. The 118-degree standard point angle and web-thinned, tapered web geometry reduce entry force and improve centering on flat and curved surfaces. At 2.125 inches overall length with a 1.125-inch flute length, this is a compact, stiff bit suited to hand-held drills, drill presses, and CNC turrets running light-duty work. Machinists, maintenance mechanics, and tool-and-die shops are the primary users.

The C72144 covers the 0.0500 to 0.1000 inch decimal inch range bracket and is built to ASME B94.11M and DIN 338 standards, making it interchangeable with equivalently rated bits in that specification family. Its 0.0860-inch decimal diameter and straight-cylindrical shank seat directly into standard Jacobs-type drill chucks without an adapter. The regular spiral and 4xD flute-to-diameter ratio provide adequate chip evacuation for through-hole work in thin stock. This bit is sold individually and is available in multiples of 12 per order.

Key Features

• Wire gauge No. 44 size at 0.0860 inches decimal diameter
• 118-degree standard point angle with web-thinned, tapered web for reduced thrust
• High speed steel construction with bright uncoated finish
• Regular spiral, 2-flute design with 4xD flute-to-diameter ratio for chip clearance
• Straight-cylindrical shank at 0.0860 inches diameter, 1.000 inch shank length
• Meets ASME B94.11M and DIN 338 standards; ANSI specification designation

Compatibility

Designed as a general-purpose jobber-length drill bit for use in standard drill chucks accepting straight-cylindrical shanks in the No. 44 wire gauge size range.

Installation Notes

Install in a properly sized drill chuck and tighten securely with a chuck key before operation. Machinists and maintenance mechanics should verify spindle speed is appropriate for the workpiece material and bit diameter before drilling. Use cutting fluid on harder metals to extend tool life. Inspect the cutting edges for wear or chipping before each use and replace when the diameter tolerance can no longer be held.