Bison Self-Centering Milling Fixture 9417 FM US
The Bison 9417 FM US Self-Centering Milling Fixture is a low-profile, four-jaw workholding solution designed to securely hold and centrally position workpieces during machining operations.
Featuring a robust cast iron body and standard precision construction, the 9417 series offers a wide clamping range with long jaw travel to accommodate different workpiece sizes. Its sealed construction helps protect the internal mechanism against machining chips and contaminants.
The fixture incorporates a front-operated clamping mechanism and an integrated base design, providing a compact workholding solution for machine setups where available Z-axis travel is limited. Depending on the mounting arrangement, it can be used on milling machine tables, T-towers, drill tables and surface grinders.
The Bison 9417 series is available in four nominal sizes: 160 mm (6"), 200 mm (8"), 250 mm (10") and 315 mm (12"), allowing users to select a fixture according to their workpiece dimensions and machining requirements.
TECHNICAL DIMENSIONS

|
Dimension |
9417-160 |
9417-200 |
9417-250 |
9417-315 |
|---|---|---|---|---|
|
ØA |
9.33 |
11.42 |
13.78 |
15.95 |
|
ØA1 |
6.89 |
8.66 |
10.83 |
13.19 |
|
B |
2.05 |
2.56 |
2.87 |
3.15 |
|
B1 |
0.67 |
0.87 |
0.87 |
0.95 |
|
ØE |
1.26 |
1.77 |
2.24 |
3.15 |
|
F |
2.64 |
3.15 |
3.74 |
4.33 |
|
G |
2.01 |
2.31 |
2.50 |
2.81 |
|
H |
0.33 |
0.37 |
0.47 |
0.51 |
|
J |
0.98 |
1.06 |
1.28 |
1.46 |
|
K |
0.67 |
0.67 |
0.79 |
0.79 |
|
L |
0.47 |
0.47 |
0.71 |
0.71 |
|
M |
— |
— |
M8 |
M8 |
|
□S |
0.35 |
0.43 |
0.55 |
0.55 |
|
n × J |
0.16 |
0.16 |
0.16 |
0.16 |
|
Weight (lb) |
28 |
53 |
85 |
131 |
KEY FEATURES
- Four-Jaw Configuration: Four-jaw stationary chuck design for workpiece clamping and positioning.
- Standard Precision: Manufactured as a standard precision chuck.
- Cast Iron Body: Robust cast iron body construction.
- Wide Clamping Range: Accommodates different workpiece sizes.
- Long Jaw Travel: Provides extended jaw travel for flexible clamping.
- Low-Profile Design: Compact construction helps reduce fixture height within the machine setup.
- Sealed Construction: Sealed against chips to help protect the internal fixture mechanism.
STANDARD ACCESSORIES INCLUDED
According to the supplied Bison 9417 catalog, the standard accessories include:
- 1 set of hard top jaws
- 1 set of hard master jaws
- 1 wrench + ratchet
APPLICATIONS
The Bison 9417 FM US is designed for machining applications requiring a low-profile four-jaw stationary chuck. Its wide clamping range and long jaw travel make it suitable for holding different workpiece sizes during machining operations.
- Workpiece holding during milling operations.
- Four-jaw machining applications.
- Machine-table workholding setups.
- Machining setups requiring a low-profile stationary chuck.
- Applications requiring a wide clamping range and long jaw travel.
SAFETY AND OPERATING INSTRUCTIONS
- Ensure the fixture is securely mounted before beginning machining operations.
- Check that the workpiece is properly positioned and clamped before operating the machine.
- Inspect the jaws and clamping components for wear or damage before use.
- Keep the fixture clean and maintain its sealed construction.
- Use the supplied wrench and ratchet for the intended fixture operation.
- Follow the manufacturer's installation, maintenance and operating instructions.
For more info, visit www.p65warnings.ca.gov.

