Cleveland C15126 Screw Machine Drill Bit Wire 36 Cobalt

Product Description

The CLEVELAND C15126 is a screw machine length drill bit designed for high-speed, precision drilling in demanding shop and field environments. Built from M42 cobalt high-speed steel, it carries a 135-degree split point angle that self-centers on contact and reduces walking on hard and abrasive materials. The parabolic flute geometry evacuates chips efficiently, making it well suited for interrupted cuts and deep-entry applications. At a compact 1-13/16 inches overall length, this stub-length bit fits tight clearances where standard-length drills cannot reach. It is sold individually and is a common choice for machinists, toolroom technicians, and maintenance mechanics.

This bit is designed for drilling alloy steels and aluminum, where tool life and hole accuracy matter. The 0.1065-inch decimal diameter (wire size 36) straight-cylindrical shank seats cleanly in drill chucks, CNC turrets, and screw machine spindles. Web thinning reduces thrust load at the cutting point, which is especially useful when drilling tough alloy grades. It conforms to ASME B94.11M and carries an ANSI specification designation, so it meets standard tolerancing requirements for production and maintenance drilling.

Key Features

• M42 cobalt construction for extended tool life in alloy steel and aluminum
• 135-degree split point self-centers and minimizes walking on hard surfaces
• Parabolic 2-flute design promotes fast chip evacuation
• Web-thinned parallel web reduces axial thrust load
• Screw machine (stub) length at 1-13/16 inches OAL fits tight-clearance setups
• Diameter tolerance held to +0.0000 to -0.0005 inches for consistent hole sizing

Compatibility

Designed as an OEM-style replacement or direct substitute for wire size 36 screw machine length drill bits in drill chucks, CNC turrets, and automatic screw machine spindles accepting a 0.1065-inch straight-cylindrical shank.

Installation Notes

Installation is performed by machinists or maintenance mechanics using a standard keyed or keyless drill chuck. Ensure the spindle and chuck are fully stopped and locked out before changing bits. Seat the shank fully and verify chuck tightness before starting the cut. Follow applicable shop safety procedures and manufacturer feed-and-speed recommendations for the workpiece material and machine type.