Quick take
Choosing a milling machine vise comes down to jaw width, opening capacity, and how you plan to mount it. The prices here run from $56.17 for a compact 4-inch lock-down vise to $121.65 for a two-piece 6-inch quick clamp set. A single 6-inch precision CNC bench clamp sits at $91.10, and the Dayton 6-inch fixed-base vise is close to the top at $119.99. If your parts fit inside a 4-inch jaw opening, the 4-inch option is the lowest-priced route. For wider stock, you are picking between one heavy vise, two vises, or a fixed-base model with published square and parallel tolerances.
Listed price at a glance
| Product | Listed price | Price bar |
|---|---|---|
| Two-Piece 6-Inch Quick Clamp Vise Set | $121.65 | |
| Single 6-Inch Precision CNC Bench Clamp Vise | $91.10 | |
| 4-Inch Precision Lock-Down Vise | $56.17 | |
| Dayton 6-Inch Fixed-Base Vise | $119.99 |
Decision matrix
| Product | Best for | Trade-off |
|---|---|---|
| Two-Piece 6-Inch Quick Clamp Vise Set | Two-station setups and extra-long workpieces | Highest listed price; two vises may be more than one machine needs |
| Single 6-Inch Precision CNC Bench Clamp Vise | One heavy 6-inch clamping station | 59.4-lb listed weight needs a sturdy bench |
| 4-Inch Precision Lock-Down Vise | Compact parts and the lowest price | 4-inch jaw opening limits wider stock |
| Dayton 6-Inch Fixed-Base Vise | Rigid 6-inch clamping with listed square and parallel tolerances | Fixed base has no swivel adjustment |
Product notes
Two-Piece 6-Inch Quick Clamp Vise Set
The set gives you two 6-inch jaw-width vises in one purchase, which is useful when you need to hold extra-long workpieces or set up two clamping positions side by side. The jaws are precision ground, and the body uses cast iron with steel jaws. The 2 1/4-inch jaw height provides extra clearance for taller stock. The trade-off is the price: it is the highest in this comparison. If you only clamp one part at a time, the second vise may be more capacity than your current setup needs.
Single 6-Inch Precision CNC Bench Clamp Vise
This single bench clamp pairs a 6-inch jaw width with a 5.9-inch jaw opening and a 1-3/4-inch jaw height. The body is HT250 gray cast iron and the jaws are 45# steel, which suits milling and drilling work. At 59.4 lbs, it is the heaviest unit in the group, so the bench or table needs to support it. It sits in the middle of the price spread among the 6-inch models. Choose this one if you want one rugged vise rather than a two-piece package.
4-Inch Precision Lock-Down Vise
The 4-inch lock-down vise is the compact entry point here. It uses 45# steel jaws and an HT250 cast iron body, and the stationary base keeps the setup simple. Listed jaw opening capacity is 4 inches, and the max clamping force is 19 kN. The limitation is tied to the size: a 4-inch jaw and opening will not take larger or longer workpieces. If your parts fit within that envelope, this is the least-expensive way to add precision clamping. If you need wider gripping, step up to one of the 6-inch models.
Dayton 6-Inch Fixed-Base Vise
The Dayton 4TK04 brings a fixed base and a 6-inch jaw width to the group. The listed specs include a 6-inch jaw opening, 2-inch throat depth, 0.002-inch jaw deflection at 2,000 lbs, and 0.001-inch bed/base parallelism. That makes it a strong candidate when you want predictable alignment for repetitive 6-inch clamping. It is priced near the top, and the fixed base means you cannot swivel the vise; positioning happens on the machine table instead. Choose it when rigidity and stated tolerances matter more than base adjustability.
Final recommendation by use case
- Compact 4-inch work and the lowest price: Choose the 4-Inch Precision Lock-Down Vise when your parts fit within a 4-inch jaw opening and you want the smallest, least-expensive option.
- A single heavy 6-inch vise: Choose the Single 6-Inch Precision CNC Bench Clamp Vise for a 6-inch jaw, 5.9-inch opening, and the more moderate price between the 6-inch vises.
- Two-station or long-stock clamping: Choose the Two-Piece 6-Inch Quick Clamp Vise Set when two vises are genuinely useful for holding extra-long workpieces; it costs more, but you get two complete clamping units.
- Rigid fixed-base 6-inch workholding: Choose the Dayton 6-Inch Fixed-Base Vise if you want fixed-base rigidity and published square and parallel tolerances.
