The ET138 series economical steel machining taps are developed for tapping applications on steel materials with hardness ≤30HRC. Made of HSS-Co high-speed steel substrate with Cr-Al coating, they deliver excellent wear resistance and chipping resistance. Multiple types including spiral flute taps, extrusion taps and edge inclination taps are available to meet different machining demands for through holes and blind holes. Featuring cost-effectiveness, these taps are ideal for mass thread tapping of steel parts, widely used in machine shops, hardware manufacturing and precision component industries.
Specifications
|
Item |
Description |
|
Model |
ET138 |
|
Product Name |
Economical Steel Machining Tap |
|
Substrate Material |
HSS-Co High Speed Steel |
|
Surface Coating |
Chromium-Aluminum Coating |
|
Suitable Workpiece |
Low carbon steel, medium carbon steel, high carbon steel, alloy steel, workpiece hardness ≤30HRC |
|
Available Tap Types |
Spiral Flute Tap, Extrusion Tap, Edge Inclination Tap |
|
Machining Type |
Blind hole / Through hole (Depends on tap type) |
|
Product Advantages |
Cost-effective, wear-resistant, anti-chipping, stable chip removal, suitable for mass tapping of steel |
Product Features
Premium HSS-Co Substrate
HSS-Co material offers great toughness, withstands cutting impact, resists tip chipping and extends tool service life.
01
Cr-Al Coating
Reduces cutting friction, withstands high temperature, prevents chip built-up, and improves the surface finish of machined threads.
02
Multiple Flute Options
Spiral flute taps for blind hole machining, upward chip evacuation; Extrusion taps produce no chips and deliver higher thread strength; Edge inclination taps for through holes with forward chip removal. Various options to fit different machining processes.
03
Optimized Cutting Edge Design for Steel
Finely processed cutting edges reduce tapping resistance and avoid damaged threads, ensuring stable machining on carbon steel and alloy steel.
04
Economical Series
Balances cutting performance and procurement cost, perfect for mass conventional steel tapping in machine workshops.
05
Application Fields
Suitable for thread processing of general mechanical parts, hardware fittings, steel structural components and standard mold accessories. Widely compatible with CNC lathes, machining centers and tapping machines.
Operation Recommendations
Packaging
Individually packed in plastic tubes, available in boxed packages for convenient storage, transportation and inventory management.
Purchase Information
A full range of standard metric M thread sizes are available. Contact us for the complete specification sheet. Non-standard custom threads can be negotiated upon request.
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