Chicago-latrobe 44135 Jobber Drill Bit Wire 65 Hss

Product Description

The CHICAGO-LATROBE 44135 is a Series 150 jobber length drill bit designed for general-purpose drilling in cast iron and steel. Built from high speed steel with an oxide coating, it measures 0.0350 inches in diameter (wire size 65) with a 118-degree standard point and a regular spiral flute. The overall length is 1-1/2 inches, and the straight-cylindrical shank matches the bit diameter at 0.0350 inches. Web thinning reduces thrust during entry, and the tapered web configuration maintains rigidity through the cut. Licensed trades and machining professionals rely on this bit for precision small-diameter work in ferrous materials.

The 44135 suits small-diameter drilling applications in light manufacturing, HVAC sheet metal, electrical enclosures, and general mechanical work where wire gauge sizing is required. The right-hand spiral flute provides consistent chip evacuation in ferrous stock. With a flute length of 5/8 inch and a shank length of 0.875 inches, the bit is optimized for short, controlled drilling passes in thin-section workpieces. It conforms to DIN 338 standards, making it suitable for use with standard drill chucks across a range of hand and bench tools.

Key Features

• Wire size 65 (0.0350 inches) diameter for precision small-hole work
• High speed steel construction with oxide coating for wear resistance
• 118-degree standard point with web thinning for reduced entry thrust
• Right-hand spiral flute with tapered web for chip clearance and rigidity
• Conforms to DIN 338 dimensional standards
• Straight-cylindrical shank compatible with standard drill chucks

Compatibility

Designed as a general-purpose OEM-style jobber drill bit for use in standard drill chucks accepting straight-cylindrical shanks; primary workpiece materials are cast iron and steel.

Installation Notes

Installation and use of this bit is typically performed by machinists, electricians, HVAC technicians, and mechanical tradespeople. Secure the workpiece firmly before drilling and confirm the chuck is tightened fully before starting the spindle. Use appropriate cutting speed for the workpiece material and bit diameter to avoid bit breakage at this small diameter. Eye protection is required whenever drilling metal stock.