03B046 - Walter 1/4-28 NF HSS Bottoming Tap

Precision Threading with Walter High Speed Steel Taps

The Walter 03B046 1/4"-28 NF Bottoming Tap is a premium-grade threading tool designed for industrial professionals who demand accuracy and durability. Manufactured from top-quality High Speed Steel (HSS), this tap is engineered to cut clean, precise threads in a variety of tough materials, including mild steel, stainless steel, and aluminum. Unlike standard carbon steel taps, Walter's HSS composition ensures the cutting edges remain sharp longer, even under the thermal stress of continuous use.

This specific model features a "bottoming" chamfer, characterized by a very short lead of only 1 to 2 threads. This design is essential for threading blind holes—holes that do not pass completely through the workpiece. The bottoming style allows the user to cut threads almost entirely to the bottom of the hole, maximizing the grip length for bolts and fasteners. It is typically used as the final step in a tapping sequence, following a taper or plug tap, to ensure full thread depth is achieved.

Walter Surface Technologies is renowned for producing tools that reduce downtime and improve workflow efficiency. The precision-ground threads on this tap reduce friction during the cutting process, resulting in lower torque requirements and a reduced risk of tap breakage. Whether you are manufacturing new components or repairing damaged threads in maintenance operations, the Walter 03B046 delivers consistent, high-quality results.

Key Industrial Applications

• Blind Hole Threading: Essential for machining operations where threads must extend to the bottom of a non-through hole.
• Maintenance & Repair: Ideal for chasing and cleaning up damaged threads in machinery and equipment.
• Multi-Material Use: Effective on ferrous and non-ferrous metals, providing versatility for diverse workshop needs.