Flott 3–16 mm self-tightening chuck is a lathe chuck for professional use, with B18 tapered mounting. Krollit, official Flott distributor since 2007.
- Clamping range: 3–16 mm
- Mounting: B18
- Compatibility: Drills with B18 tapered mounting
- Replaces: Art. 285161
Who uses the 3–16 mm self-tightening chuck and for what
Mechanical workshops and artisan turners use the 3–16 mm self-tightening chuck as a clamping accessory on metal lathes, ensuring secure locking and centering of the workpiece during turning, drilling, and grooving operations.
Its place in the Flott range
The Flott 3–16 mm self-tightening chuck is part of the Flott lathe chuck range, distributed in Italy by Krollit since 2007. The Flott range includes models of various categories and performances: to choose the right machine for your use case, you can consult the Flott catalog on Krollit or contact customer support for selection assistance.
Krollit logistics and support
Shipping 3-5 business days from Krollit warehouse for spare parts and accessories. Italian customer support available for technical documentation and compatibility verification with the reference machine. Krollit has been an official distributor since 2007.
Who the 3–16 mm self-tightening chuck is for
The 3–16 mm self-tightening chuck is recommended for the following professional profiles:
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Mechanical workshops and artisan turners: secure clamping of round or hexagonal workpieces on metal lathes for turning, drilling, and grooving operations.
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Users with a compatible flange Bernardo lathe: original replacement or upgrade for Bernardo lathes (profi, hobby, etc.) with A2 mounting according to DIN 55029.
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Irregular or non-round workpieces: for non-symmetrically centered workpieces, consider 4-jaw independent chucks or universal platforms.
Frequently Asked Questions
When to use this chuck?
It is a self-centering chuck for clamping workpieces on the lathe during turning operations.
Self-centering chucks allow for quick clamping of the workpiece with a single wrench. The choice depends on the shape of the workpiece (cylindrical, square) and the body material (steel or cast iron).
What material is the chuck body made of?
The material is indicated in the title: steel (PO series) for maximum precision, cast iron (DK/PS series) for standard use.
The choice depends on usage intensity and required tolerance: steel for production and precision, cast iron for general use.
Which diameter to choose?
The choice of diameter depends on the lathe spindle nose (must match the mounting) and the size of the workpieces to be machined.
Typical diameters: 80-160 mm for hobby lathes, 200-315 mm for professional lathes, 400-630 mm for industrial lathes.
How do I check compatibility with my lathe?
Check the type of mounting on the lathe spindle nose (Camlock D3-D15, or threaded mounting M-) and the corresponding diameter.
On modern lathes, Camlock mounting is the most common. On older lathes, there may be threaded (M-) or flanged mounting. The lathe's technical documentation indicates the exact type.
How do you maintain the precision of the chuck?
Regular cleaning of the spiral mechanism, periodic lubrication with specific chuck grease, concentricity check every 6 months with a dial indicator.
A jaw that moves with difficulty indicates chips or rust in the mechanism: disassemble, clean, and grease. Concentricity is checked by mounting a ground bar and measuring with a dial indicator: acceptable tolerance 0.03-0.1 mm depending on the model.
