Hertel 89321848 Screw Machine Drill Bit 47/64 in Hss

Product Description

The HERTEL 89321848 is a screw machine length drill bit designed for high-speed steel cutting in metal fabrication and general machining applications. With a 47/64 inch (0.7344 inch) diameter and a standard 118-degree point angle, this bit delivers consistent entry geometry across a range of workpiece materials. The shortened flute length of 3-1/8 inches and 5-inch overall length improve rigidity and reduce deflection during drilling, making this format a reliable choice for screw machine work, drill press operations, and CNC setups where stub-length tooling is preferred over jobber-length bits.

This drill bit is suited for general-purpose metal drilling in manufacturing, maintenance, and production environments. The bright, uncoated finish makes it well matched to lower-speed cutting conditions and materials such as mild steel, aluminum, and similar non-hardened metals. Right-hand cut geometry is the standard configuration for conventional drill press and screw machine use. Machinists, tool-and-die technicians, and maintenance professionals working with drilling fixtures or turret setups will find this a practical fit for everyday hole-making tasks.

Key Features

• 47/64 inch diameter (0.7344 inch decimal equivalent) for precise hole sizing
• 118-degree point angle for general-purpose cutting entry
• High-speed steel construction provides durability across common metal workpieces
• Screw machine length body improves rigidity and reduces chatter versus jobber-length bits
• Bright, uncoated finish suitable for standard cutting fluids and lower-speed operations
• Right-hand cut direction compatible with conventional drilling equipment

Compatibility

Designed as a general-purpose screw machine length drill bit for use in screw machines, drill presses, turret lathes, and CNC drilling setups requiring stub-length tooling with a standard round shank.

Installation Notes

This bit should be installed by a qualified machinist or maintenance technician familiar with drill press or screw machine operation. Ensure the spindle is fully stopped and power is disconnected before changing tooling. Secure the bit firmly in the chuck or collet to the full depth of the shank before operation. Use appropriate cutting fluid for the workpiece material to extend tool life and maintain hole quality.