Seco Offers 335.14 Disc Mills to Ensure Taper-Free Deep-Hole Threading

Press Release Summary:

The 335.14 Disc Mills are offered with interchangeable threading heads and matching holder shanks. The shanks come in carbide and steel types with internal cooling capability in metric sizes ranging from 11.7 mm to 21.7 mm with profile pitch between 1 mm and 6 mm. These full profile heads are available in 11.7 mm to 17.7 mm and in 11, 14 and 19 tpi pitch. The 335.14 heads generate precision thread in holes as deep as 106 mm.

Original Press Release:

Seco Disc Mill that Chamfers and Threads Debuts at IMTS

TROY, Mich., September 10, 2018 – Seco Tools introduced the new 335.14 single raw Disc Mill interchangeable threading heads and matching holder shanks IMTS 2018. The heads perform both chamfering and threading operations to boost processing speed, precision and versatility as well as reduce required tooling inventories.

The 335.14 heads generate precision threads in holes as deep as 106 mm. Other threading tools are limited in terms of either thread size and/or maximum hole depths they can thread. The new heads, unlike standard thread mills, are single raw disc mills that circular interpolate an entire hole depth and create threads pitch by pitch, which allows for greater achievable depths.

The cutting action of the new heads keeps chip sizes to a minimum and ensures taperfree deep-hole threading. It also means the heads require less machine power and torque which allows smaller, less powerful machine tools to easily generate big threads.

The 335.14 shanks are available in both carbide and steel types and with internal coolant capability. Metric sizes are available from 11.7 mm to 21.7 mm and with partial profile from pitch 1 mm – 6 mm (14 pcs). Whitworth full profile heads are offered from 11.7 mm to 17.7 mm and pitch 11, 14 and 19 tpi. UN is offered at 17.7 mm with pitch 24 to 6 tpi.

About Seco Tools, LLC Seco Tools, LLC is a leading provider of metalcutting solutions for milling, turning, holemaking and toolholding. The company prides itself on building close relationships with customers to effectively understand and address their needs. For more information on the company’s products and services, please contact Bob Heery, Seco Tools, LLC, 2805 Bellingham Drive, Troy, Michigan, Tel: 248.528.5451, Email:, visit or follow the company on Twitter at @SecoToolsUS


dgs Marketing Engineers®

Chuck Bates | 317.813.2230


Seco Tools, LLC

Bob Heery | 248.528.5451

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