ST20x100L Milling Extension With ER20M Collet Set, 12Pc - Vertex

Benefit from the combination of extended reach, precise ER20M clamping and the practical 12-piece set that keeps spares on hand for uninterrupted production. Order the V-697A milling extension set directly via Metav Werkzeuge or ask our consultants for configuration advice.

V-697A Milling Extension Set — ST20 x 100 L with ER20M Collets by Vertex

A V-697A milling extension set engineered to extend tool reach for confined and deep-pocket machining while maintaining secure clamping and repeatable concentricity.

• ER20M collet compatibility for standard tooling
• ST20 x 100 L shaft for extended reach machining
• Supplied as a 12-piece set for consistent stock
• Robust construction, 1.1 kg total weight

Reach further while keeping tool stability

The ST20 x 100 L designation identifies a shank prepared for extended-reach milling, adding 100 mm to standard tool length while retaining a compact envelope. Extending reach without excessive overhang reduces the need for improvised tool setups and supports consistent cutting conditions. The increased reach is balanced by a design focus on rigidity to limit vibration and preserve surface finish, which makes the component suitable for deep-pocket operations and fixtures where access is restricted.

Secure clamping and high concentricity for accurate cuts

Clamping is handled via the ER20M collet interface, a widely used standard that delivers reliable grip and low runout when correctly seated. A high-quality collet system translates into predictable concentricity, reduced tool wobble and improved part tolerances. For production settings that demand repeatable hole or contour accuracy, the combination of a precision collet and a purpose-built extension reduces rework and shortens inspection cycles. Collet technology is explained clearly at the point of selection to match tooling diameters and machining speeds.

Set configuration designed for workshop efficiency

Supplied as a 12-piece set, the assortment ensures that replacement extensions and collets are available without delay, cutting downtime associated with tool changes or lost items. The total mass of the set (approx. 1.1 kg) keeps handling straightforward during changeovers and storage. By choosing a complete set, procurement and inventory management are simplified: a single SKU consolidates stock-keeping and reduces ordering complexity, which benefits maintenance teams and small-batch manufacturers alike.

Reliable supply and partner expertise for uninterrupted production

Sourcing through a specialist distributor ensures consistent product availability and quality filtering for the European market. Metav Werkzeuge acts as a quality gateway, combining decades of application expertise with a broad inventory to support industry and craft users. This partnership approach helps maintain production continuity, with a pragmatic focus on dependable supply and technical competence rather than marketing promises.

Contact Metav Werkzeuge for tailored advice on selecting the correct Vertex milling extension configuration to match specific machine tool interfaces and production requirements — Metav Werkzeuge in Emmerich is ready to assist by email or phone

Technical data

• Article number: V-697A
• GTIN: 4061905095924
• Manufacturer: Vertex

Facts

• Weight: 1.1 kg
• Set count: 12 pieces
• Shank/length: ST20 x 100 L
• ECLASS: 21020590
• ETIM: EC002219

Special features

• Collet type: ER20M
• Supplied as a set with collets
• Suitable for extended-reach milling applications

FAQ

What applications suit this milling extension set?
The V-697A milling extension set by Vertex is designed for extended-reach milling in confined spaces and deep-pocket operations where a 100 mm extension and stable clamping are required.

Which collet system is used and why does it matter?
The set uses ER20M collets; this standardised collet type provides secure clamping and low runout, which improves concentricity and machining accuracy when using the Vertex milling extensions.

Is the V-697A supplied as individual pieces or only as a set?
The product is supplied as a 12-piece set, ensuring spare extensions and collets are available for quick changeovers and reduced downtime.

How does the extension impact surface finish and tool life?
By offering controlled reach and stable clamping, the Vertex extension reduces vibration and tool deflection, which typically results in improved surface finish and more consistent tool life compared with ad hoc extension solutions.

Can this extension be used with different toolholder systems?
The extension is specified as ST20 x 100 L with ER20M collet compatibility; matching the machine spindle and toolholder interface to these designations ensures correct fit and performance.

Manufacturer: Vertex Machinery Works Co., Ltd.; No. 296, Sec. 1, Feng Shih Road, Fengyuan District, Taichung City 420, Taiwan