JIS Extended Rolling Taps

With its three core advantages—extended structure, high rigidity, and chipless cold extrusion process—Wilson JIS Extended Rolling Taps are the optimal solution for deep hole and hard-to-reach thread machining. As a trusted supplier and manufacturer, Wilson, based in China, provides high-performance, high-reliability thread machining solutions to global customers through stringent factory production standards and continuous technological innovation, helping the manufacturing industry overcome deep hole machining bottlenecks and improve product quality and production efficiency.

Core Product Design

In thread machining of deep holes, blind holes, and concealed areas within workpieces, standard taps often fail to reach the machining area due to insufficient length and rigidity, or experience problems such as wobbling, misalignment, and tap breakage during machining. Wilson JIS Extended Rolling Taps address these limitations with a structurally optimized design.

1. Extended Structure Design

Utilizing a longer cutting edge and shank, it easily penetrates deep into the workpiece, precisely reaching deep holes and difficult-to-reach areas that standard taps cannot cover, completing thread machining tasks under complex conditions.

2. High Rigidity Material and Process

Using high-performance base steel and precise heat treatment processes, the taps possess exceptional bending and vibration resistance, maintaining stability even in long overhang machining scenarios, preventing wobbling and deformation.

3. Chip-Free Cold Extrusion Forming Process

Abandoning traditional cutting methods, the taps form threads through cold extrusion, eliminating chip generation during the machining process. This fundamentally avoids the risk of tap breakage due to chip blockage, while simultaneously improving thread strength and surface finish.

Core Performance Advantages

1. Ultimate Dimensional Accuracy, Strict Thread Quality Control

The product's rigidity combined with precision grinding technology achieves micron-level dimensional accuracy control. During machining, tool wobble is effectively suppressed, strictly ensuring the form and position tolerances and dimensional consistency of deep hole threads, avoiding issues such as misaligned threads, irregular threads, and dimensional deviations. This ensures that every thread meets JIS standards and high-end assembly requirements.

2. High Machining Reliability, Adaptable to Harsh Working Conditions

The stable cold extrusion process significantly reduces the risk of tool breakage during deep hole machining, forming uniform, high-strength, and high-surface-finish high-quality threads from the hole opening to the bottom. Whether it's high-hardness steel, stainless steel, or other difficult-to-machine materials, or deep holes and blind holes with large length-to-diameter ratios, it can consistently output high-quality threads, perfectly matching the high-standard assembly requirements of automotive parts, hydraulic equipment, precision machinery, and other fields.

Real-world Application Case

Case: Deep Hole Thread Machining for Automotive Transmissions

A well-known automotive parts factory needed to machine deep holes (80mm depth, M8 thread, 40Cr material) in its transmission housing. Previously, using standard taps resulted in frequent tap breakage and insufficient thread finish, with a pass rate of only 82%.

After adopting Wilson JIS Extended Rolling Taps:

- The extended shank easily reaches the bottom of the 80mm deep hole, eliminating blind spots;

- Chip-free process eliminates chip clogging, and there is no tap breakage during machining;

- Thread strength increased by 30%, surface finish reached Ra0.8, and the pass rate increased to 99.5%;

- Single tap lifespan increased by 2 times, and overall machining costs decreased by 25%.

Wilson JIS Extended Rolling Taps Parameter (Specification)

FAQ

Q1: What is the core difference between Wilson JIS Extended Rolling Taps and ordinary cutting taps?

A1: The core difference lies in the machining principle and performance. Ordinary cutting taps create threads by cutting away metal, producing chips that are prone to clogging, breakage, and low thread strength. Wilson JIS Extended Rolling Taps, on the other hand, are formed through chipless cold extrusion, allowing the metal to flow plastically to form the threads. This process produces no chips, increases thread strength by approximately 30%, and results in a smoother surface. The extended, high-rigidity design is also suitable for deep hole machining, a task that ordinary cutting taps cannot handle for long overhangs and deep holes.

Q2: What materials and thread specifications does this product support?

A2: It supports a wide range of materials, including low-carbon steel, medium-carbon steel, alloy steel, stainless steel (304/316), aluminum alloys, and other metals with good plasticity. It can machine workpieces with a hardness ≤40HRC. Thread specifications cover the commonly used metric M3-M16, and special specifications can be customized according to customer needs. It strictly adheres to JIS standards to meet the deep hole thread machining requirements of various industries.