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TOP-TOOL Professional 3-Jaw Self-Centering Lathe Chuck, 100mm/4-inch, Cast Iron Construction, 2-80mm Clamping Range with Internal External Jaws and T-Key
$75.51 CAD
Sale price
$75.51 CAD
Regular price
TOP-TOOL Professional 3-Jaw Self-Centering Lathe Chuck, 100mm/4-inch, Cast Iron Construction, 2-80mm Clamping Range with Internal External Jaws and T-Key
$75.51 CAD
Sale price
$75.51 CAD
Regular price
Professional 100mm / 4-Inch 3-Jaw Self-Centering Lathe Chuck
The TOP-TOOL Professional 100mm 3-Jaw Self-Centering Lathe Chuck is the versatile workhorse for small to medium metal lathes. Built with a HT300 Cast Iron body and AISI 5140 alloy steel scroll, it combines self-centering speed with the precision needed for general-purpose turning.
Premium Materials & Hardening
| Component | Material | Hardness (HRC) |
|---|---|---|
| Body | HT300 Cast Iron | — |
| Jaws | AISI 1045 Carbon Steel | 52-58 |
| Scroll Plate | AISI 5140 Alloy Steel | 43-48 |
| Bevel Gears | AISI 5140 Alloy Steel | 45-50 |
| Back Plate | HT100 / Engineered Plastic | — |
Key Features
- HT300 Cast Iron Construction: High-grade grey cast iron provides superior vibration damping and rigidity for smoother cuts and better surface finishes.
- Hardened Scroll & Gears: AISI 5140 alloy steel scroll (HRC 43-48) and bevel gears (HRC 45-50) for smooth, precise operation and long service life.
- Hardened Jaws (HRC 52-58): AISI 1045 carbon steel jaws through-hardened for maximum grip strength and wear resistance.
- Guaranteed Precision: Every chuck tested with 4 different diameter test bars. Repeatability ≤0.05mm (0.002").
- Plain Back Mount: 3× M8 mounting holes. Note: Requires a separate adapter plate compatible with your lathe's spindle nose.
- Includes External & Internal Jaws: Comes with both external jaws (3–72mm) and internal jaws.
- T-Key Included: Robust T-handle key. Remove before operation.
Technical Specifications
| Parameter | Value |
|---|---|
| Chuck Diameter (D) | 100mm |
| Clamping Range (External) | 3 – 72mm |
| D2 | 84mm |
| D3 | 22mm |
| Body Length (H) | 74.5mm |
| H1 | 55mm |
| Jaw Step Height (h) | 3.5mm |
| Mounting Thread (z-d) | 3× M8 |
| Repeatability | ≤0.05mm (0.002") |
| Net Weight | 3.0 kg |
Error-Free Jaw Installation
Numbered jaws (1, 2, 3) match the chuck body slots for quick, accurate installation. Prevents misalignment and ensures optimal concentricity.
Versatile Applications
- Lathe: General turning, facing, drilling, boring
- Milling Machine: Workpiece holding for milling
- Drilling Machine: Precision drilling setups
- CNC Machine: Light CNC turning and production
Compatibility Guide
Suitable for small benchtop lathes.
Sizing Rule: Lathe swing diameter > Chuck diameter (100mm). Allow clearance for jaw extension. A swing of ≥130mm is ideal.
Maintenance
Regularly clean the scroll mechanism and apply Molybdenum Disulfide (MoS2) grease to the scroll teeth and bevel gears. Store in a dry environment.
Made with care
Heirloom quality
Premium materials
Classic styling
Styled With
Materials
HT300 AISI1045 AISI 5140
Included Accessories
T-Key,Bolts ,External Jaws（One-piece Jaw Chuck）
Details
Backplate not included.