FODBITS Self-tightening Tapping and Drilling Chucks - GEAR STRUCTURE

FODBITS® Tapping & Drilling Self?Tightening Chuck – High?Torque, No?Slip, Multi?Purpose
The FODBITS® self?tightening tapping and drilling chuck is a next?generation clamping system engineered for maximum torque, zero slippage, and exceptional durability. With a world?leading clamping force of up to 247?N·m, this chuck delivers unmatched performance in both tapping and drilling applications. Designed for CNC machining centres, lathes, boring/milling centres, rocker drills, bench drills, tapping machines, and general workshop machinery, it is the ideal upgrade from traditional keyed and keyless chucks.

Overview
FODBITS® combines a patented self?tightening mechanism with high?precision construction to deliver superior clamping strength, long service life, and outstanding operator convenience. As cutting resistance increases, the chuck automatically tightens — ensuring the tool never slips, even under heavy load or during reverse rotation.

With more than 20 international and domestic patents, FODBITS® fills a long?standing gap in global drill chuck technology and sets a new benchmark for performance and safety.

Key Features
Extreme Clamping Force – Up to 247?N·m
The self?tightening mechanism increases clamping force as cutting load rises. Tools remain firmly locked with zero slippage, protecting both the tool and the workpiece.

Wide Tapping & Drilling Range
Available in multiple configurations:
1–3?mm clamping: Tapping M3–M16, drilling 1–20?mm
1–16?mm clamping: Tapping M3–M20, drilling 1–26?mm
5–20?mm clamping: Tapping M6–M24, drilling 5–30?mm

Hand?Tighten, No Tools Required
Clamp and release by hand in seconds — no keys or special tools.
Tool change time is ¼ of a keyed chuck, improving productivity and reducing operator fatigue.

5–20× Longer Service Life
Premium materials and specialised heat?treatment processes deliver exceptional durability.
Outlasts conventional keyed chucks by 5–20 times under identical conditions.

High Precision & Stability
High?precision models: <?0.05?mm run?out
Standard models: <?0.16?mm run?out
The strong clamping force prevents micro?slippage, protecting the jaws and maintaining accuracy over long?term use.

Enhanced Safety
Built?in anti?backslide mechanism prevents tool ejection during machine reversal or sudden stops — a major safety improvement over traditional chuck.

Low Operating Cost
Less jaw wear
Lower scrap rate
Faster tool changes
Longer tool and chuck life
Overall, a significantly lower cost per job.

Flexible Disconnecting Device
A thrust?nut design allows easy removal of the chuck while protecting the back taper hole, extending the chuck’s lifespan.

Operator?Friendly Design
Simple, intuitive, and powerful — a favorite among machinists and workshop operators.

Product Categories
Self?Tightening Tapping & Drilling Chucks (Gear Structure)
- Taper Mount
- Integrated BT Shank
- Integrated Taper Shank
- Integrated Straight Shank
- Mag Drill Version

Self?Tightening Tapping & Drilling Chucks (Screw Structure)
- Taper Mount
- Integrated Morse Taper Shank
- Integrated BT Shank

Drill?Tap Chucks for Power Drills
- Thread Mount Drill?Tap Chuck

Protective & Special?Purpose Arbors
- Overload Protective Drill Chuck Arbors
- Morse Taper Arbor with Separation Nut

Applications
Suitable for a wide range of machines and environments:
CNC machining centres
CNC lathes
CNC boring & milling centres
Rocker drills & bench drills
Tapping machines
Milling machines
Conventional lathes
Combination machine tools
General fabrication & maintenance workshops

Ideal for:
Heavy?duty tapping
Large?diameter drilling
High?torque machining
Precision drilling and tapping
High?volume production environments

Why Choose FODBITS®
World?leading clamping force
Zero?slip performance
Massive tapping & drilling range
Longest service life in its class
Safer and more reliable than keyed or keyless chucks
Backed by 20+ patents and exclusive manufacturing technology