Collet Shaft Proxxon Micromot 2.35 x 44 mm (model 28 815) for rotary tools

Proxxon Micromot collet shaft Ø 2.35 x 44 mm is a precision accessory for Proxxon Micromot rotary tools designed to hold small-diameter bits and accessories securely. With a slim 2.35 mm clamping diameter and a 44 mm shaft length, this component enables stable attachment of micro-drill bits, grinding and engraving heads for fine, detailed work. It is intended for users who require accurate positioning and reliable retention of miniature tooling in hobby, model making and light workshop tasks.

Advantages

This collet shaft offers a precise fit for 2.35 mm shank accessories, reducing runout and improving concentricity for delicate operations. Its solid construction ensures consistent grip and minimal vibration during low- to medium-speed rotary tool use. The 44 mm length provides sufficient reach for working in confined spaces while maintaining stability. Compatibility with Micromot tool systems allows straightforward installation and interchangeability with other Proxxon accessories.

Suitable for

• Micro-drilling in plastic, wood, and thin metal sheets
• Fine grinding and surface finishing on small parts
• Engraving and detail carving on models and crafts
• Jewellery and watch repair tasks requiring miniature tooling
• Precision sanding and polishing of small components

Key specifications

• Clamping diameter: 2.35 mm
• Shaft length: 44 mm
• Designed for Micromot rotary tool systems
• Material: precision-machined metal (for secure grip and durability)
• Intended use speed range: typical rotary tool low to medium RPM applications

How to use

Fit the collet shaft into the Micromot spindle or compatible chuck following the tool manufacturer's instructions, ensuring the tool is powered off and unplugged. Insert the 2.35 mm shank accessory fully into the collet and tighten according to the Micromot tool's clamping procedure to achieve secure retention. Verify concentricity and runout at low speed before proceeding to the intended operation, and use appropriate cutting or finishing speeds for the inserted accessory.

Usage recommendations

Use appropriate personal protective equipment such as eye protection and dust extraction when performing drilling, grinding or engraving. Avoid excessive side loads on miniature bits to prevent premature wear or breakage, and check clamping tightness periodically during extended operations. For best results, match accessory type and speed to the material being worked on and consult Proxxon Micromot guidance for compatible accessories.