Cleveland C70329 Screw Machine Drill Bit 25 Hss 135 Point

Product Description

The CLEVELAND C70329 is a screw machine length drill bit designed for high-production drilling in tight-clearance applications. Manufactured from high-speed steel with a bright, uncoated finish, this bit features a 135-degree split point and web-thinned geometry that reduces walking on entry and lowers thrust force at the start of the cut. Wire gauge size 25 corresponds to a decimal diameter of 0.1495 inches. The short overall length of 2-1/16 inches and straight-cylindrical shank make it well suited for drill presses, CNC machining centers, and screw machine setups where rigidity and repeatability matter.

This bit is intended for drilling alloy steel and aluminum in production environments. The 1-inch flute length provides adequate chip clearance for the short-length format, and the parallel web configuration maintains consistent cutting geometry throughout the tool life. A licensed machinist, toolroom tech, or CNC operator would typically deploy this bit in a production drilling cycle or job-shop application requiring precise, repeatable hole sizing. The series 2330 designation places this bit within a heavy-duty product family built to ASME B94.11M standards.

Key Features

• 135-degree split point with web thinning reduces thrust and eliminates center punch in most applications
• High-speed steel construction handles alloy steel and aluminum at standard production feed and speed rates
• Screw machine length format — 2-1/16 inches OAL — improves rigidity and reduces deflection versus jobber-length bits
• Straight-cylindrical shank at 0.1495 inches diameter fits standard drill chucks and collet holders
• Bright uncoated finish allows visual wear inspection without coating masking the substrate
• Meets ASME B94.11M and NAS 907 Type C specifications

Compatibility

Designed as a screw machine length replacement drill bit for production drilling setups requiring a wire gauge size 25 (0.1495 inch) hole diameter in alloy steel or aluminum workpieces. Fits any standard drill chuck or collet accepting a 0.1495-inch straight-cylindrical shank.

Installation Notes

Installation is performed by a machinist or CNC operator following standard tooling change procedures. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the shank fully in the chuck or collet and verify runout with a dial indicator when hole-location tolerance is critical. Do not exceed the recommended feed and speed parameters for the workpiece material to avoid premature point failure.