Hertel 89321756 Screw Machine Drill Bit 37/64 in Hss

Product Description

The HERTEL 89321756 is a screw machine length drill bit designed for general-purpose drilling in metal, wood, and similar materials. Built from high-speed steel with a bright, uncoated finish, this bit delivers reliable performance across a wide range of shop and field applications. It measures 37/64 inches (0.5781 inches decimal) in diameter with an overall length of 4.125 inches and a 118-degree split or conventional point angle. The shorter-than-jobber body length improves rigidity and reduces deflection in screw machine and turret lathe setups, as well as hand-held drill press operations. Machinists, pipefitters, ironworkers, and maintenance mechanics are the primary users of this style of bit.

This drill bit is suited for production drilling environments where a shorter, stiffer bit improves hole accuracy and reduces runout. The 37/64-inch diameter falls in the 0.5000 to 0.6000 inch size range and is appropriate for through-hole and clearance drilling in ferrous and non-ferrous stock. The right-hand cutting direction is standard for conventional drill press, CNC turret, and hand-held power drill use. The flute length of 2.625 inches provides adequate chip evacuation for moderate-depth holes.

Key Features

• 37/64 inch (0.5781 inch decimal) diameter for precise hole sizing
• 118-degree point angle for general-purpose drilling in a wide range of materials
• High-speed steel construction provides toughness and heat resistance
• Screw machine length body improves rigidity and reduces deflection versus jobber-length bits
• Bright, uncoated finish allows easy visual inspection of bit condition during use
• Right-hand cut for use with standard drill presses, CNC turrets, and power drills

Compatibility

Designed as a general-purpose screw machine length drill bit compatible with standard drill chucks and collet holders sized to accept a 37/64-inch shank diameter in drill press, turret lathe, and hand-held power drill applications.

Installation Notes

This bit is installed and replaced by machinists and maintenance mechanics following standard tooling change procedures. Secure the bit firmly in the chuck or collet before operation and verify runout is within acceptable limits. Always wear appropriate eye protection and ensure the workpiece is clamped securely before drilling. Inspect cutting edges for wear before each use; a dull high-speed steel bit should be reground or replaced rather than forced through material.