Description
Product Overview
When you need to mill, drill, or surface grind a complex angle into a workpiece, you need workholding that is as rigid as it is precise. The JAM (Japan Automatic Machine) 75×80 Precision Sine Vise is a heavy-duty, toolmaker-grade instrument engineered to hold your parts securely at exact angles without the flex or chatter associated with cheaper tilting vises.
- Precision Sine Adjustment: Setting your angle is simple and secure. The sine adjustment pivots smoothly and locks down solidly using a standard Allen key, allowing you to establish exact angles for critical machining or grinding operations.
- Horizontal V-Groove Jaw: Trying to hold round stock in flat jaws is a recipe for disaster. The moving jaw on this vise features a precision-cut horizontal V-groove, giving you a rock-solid, three-point grip on pins, shafts, and cylindrical workpieces.
- Thick, Sturdy Base: A sine vise is only as good as its foundation. This unit features a remarkably thick, heavily cast mounting base, providing maximum vibration dampening and a rigid footprint for bolting down to your milling table or magnetic chuck.
- Silky Smooth Screw Action: The main lead screw on this vise is a testament to Japanese engineering. It operates with a flawless, almost gliding action, allowing you to clamp down on delicate parts with incredible tactile feedback.
Condition
Used (Good Condition / Shows Patina).
This precision vise has seen active duty in a professional shop and is being sold in good, functional condition with total transparency regarding its cosmetic and mechanical state.
- Surface Condition: The vise exhibits a visible surface patina and cosmetic discoloration all over from shop use and age. However, there is no deep pitting or damage that compromises its rigidity or accuracy.
- The Mechanics: The jaws themselves are in great shape without heavy crash damage. The jaw lead screw operates flawlessly. Please note that while the sine adjustment locks securely, the pivot action is currently a bit tight from sitting and would benefit from a quick clean and a drop of way oil to get it moving perfectly again.
Brand Information
JAM (Japan Automatic Machine Co., Ltd.) is a highly respected Japanese manufacturer known globally for their automated machinery, precision presses, and top-tier workholding solutions. Their precision vises are heavily favored by tool and die makers for their robust construction, exceptional squareness, and long-term durability.
Specifications
| Feature | Specification |
| Brand | JAM (Japan Automatic Machine) |
| Type | Precision Sine Vise |
| Size / Capacity | 75×80 (Approx. 75mm Jaw Width / 80mm Opening) |
| Angle Adjustment | Allen Key Lock |
| Moving Jaw Feature | Horizontal V-Groove (For round stock) |
| Base | Heavy-Duty Flanged Base |
| Condition | Good Used Condition (Tight sine pivot, shows patina) |
Keywords
JAM sine vise, Japan Automatic Machine vise, toolmakers sine vise, 75mm sine vise, precision grinding vise, angled milling vise, machinist vise, Japanese workholding, V-groove vise.
