Hertel 02387397 Screw Machine Drill Bit Wire 46 Hss Tin

Product Description

The HERTEL 02387397 is a screw machine length drill bit designed for high-speed, close-tolerance drilling in metal and industrial materials. It is manufactured from high-speed steel with a titanium nitride coating, improving surface hardness and extending tool life in production environments. The bit is sized to wire gauge 46, equal to 0.081 inches in decimal, and features a 135-degree split point that reduces walking on entry and requires less feed pressure than a standard 118-degree point. Overall length is 1.75 inches with a 0.75-inch flute length. The shorter screw machine length profile improves rigidity and is favored by machinists and production drill press operators working in tight setups.

This drill bit suits production machining, CNC drilling, and bench drill press operations where a compact, rigid bit is needed for small-diameter holes in ferrous and non-ferrous metals. The screw machine length format is common in automated and semi-automated setups where reduced overhang lowers deflection risk. The 135-degree split point and web-thinned geometry make it well-suited for drilling into pre-spotted or un-spotted surfaces without a center punch in many applications.

Key Features

• Wire size 46 (0.081 inches decimal) for precision small-diameter drilling
• 135-degree split point with web-thinned parallel web reduces entry force and walking
• Titanium nitride coating increases surface hardness and reduces friction for longer tool life
• Screw machine length at 1.75 inches OAL improves rigidity over jobber-length bits
• Right-hand cut, straight-cylindrical shank fits standard drill chucks
• Regular spiral fluting with no coolant-through requirement simplifies setup

Compatibility

Designed as a direct-fit replacement for wire gauge 46 screw machine length drill bits used in standard three-jaw drill chucks accepting straight-cylindrical shanks.

Installation Notes

Installation is performed by machinists or qualified drill press operators. Secure the straight-cylindrical shank fully in a keyed or keyless chuck before operation and verify chuck jaw engagement across the full shank contact area. Power down the drill press or CNC spindle completely before changing bits. Do not exceed the recommended surface footage for high-speed steel tooling in the material being drilled, and apply cutting fluid where appropriate to manage heat buildup.