Hertel 89321863 Screw Machine Drill Bit Wire 3 Hss

Product Description

The HERTEL 89321863 is a screw machine length drill bit designed for general-purpose drilling in metal, wood, and plastic. It carries a wire gauge size of 3, which corresponds to a decimal diameter of 0.2130 inches. The 118-degree split-point angle promotes self-centering on entry and reduces the need for a center punch on most materials. Constructed from high-speed steel with a bright, uncoated finish, this bit delivers reliable performance in standard production and maintenance drilling applications. The shortened screw machine length body reduces deflection and provides added rigidity in drill press and CNC turret setups. Machinists, toolroom technicians, and maintenance trades are the primary installers.

This drill bit is suited for screw machine operations, drill press work, and hand-drill applications where a compact, rigid bit is preferred over jobber length. The 0.2130-inch diameter falls within the 0.2000 to 0.2500-inch decimal inch size range, making it a standard selection for tapping pilot holes and through-hole drilling in light-gauge ferrous and non-ferrous stock. It is sold individually and fits standard three-jaw drill chucks compatible with its shank diameter.

Key Features

• Wire gauge size 3 with a decimal diameter of 0.2130 inches for precise hole sizing
• 118-degree point angle for general-purpose drilling across common materials
• High-speed steel construction provides heat resistance and edge retention during extended use
• Bright, uncoated finish — no coating to chip or flake during regrinding
• Screw machine length body reduces deflection and improves rigidity in short-reach setups
• Right-hand cut orientation compatible with standard drill press and CNC spindle rotation

Compatibility

Designed as an OEM-style general-purpose screw machine length drill bit compatible with standard three-jaw drill chucks and collet systems accepting a 0.2130-inch shank diameter.

Installation Notes

This bit is installed and replaced by machinists, toolroom technicians, and maintenance mechanics. Secure the shank fully in the chuck and confirm runout before drilling. Use appropriate cutting fluid when drilling hardened or stainless steel to extend bit life and prevent work hardening. Inspect the cutting edges before each use and regrind or replace when chipping or dulling is observed.