Any shop that works around lathes, mills, and drilling machines eventually faces the same accessory choice: do you make an existing machine easier to operate, or do you add a workholding tool that positions work at new angles? These two products take opposite paths. The Bridgeport/Sharp Milling Machine Knee Tool Crank is listed at USD 25.00, while the EDGE TOOLS 3-inch Rotary Table Horizontal and Vertical Model 4 Slots Milling Machine is listed at USD 64.89. Both are new items, but they solve different shop problems.
Quick verdict
If your mill uses the 9-COG interface found on SuperMax, Comet, Enco, JET, Alliant, ACER, Sharp, Webb, and Acra mills, and your goal is a faster, less tiring way to raise the knee, the Bridgeport/Sharp crank is the straightforward choice. If you need to set precise angular positions and your workpieces fit a compact rotary table, the EDGE TOOLS rotary table adds that capability. The decision is really about whether the next job is moving the knee or rotating the workpiece.
Comparison
| Product | Listed price | Price bar |
|---|---|---|
| Bridgeport/Sharp Milling Machine Knee Tool Crank | USD 25.00 | |
| EDGE TOOLS 3-inch Rotary Table Horizontal and Vertical Model 4 Slots Milling Machine | USD 64.89 |
Where each wins
The crank wins if you own a compatible mill. This is a CNC-machined steel helper built to lift the knee. The center hole is drilled to maximum depth to lighten the tool, and it can be turned with a hand drill for knee lifting. It is made in the U.S.A.
The rotary table wins when you need angular work positioning. Its table is graduated in 360 degrees, the worm gear ratio is 1:36, and the handwheel can be zeroed after each setup. It mounts in horizontal or vertical position, so it can do more than one kind of angular job.
Product notes
Bridgeport/Sharp Milling Machine Knee Tool Crank - Crank It up
This crank is a useful addition when your machine already uses the 9-COG interface and you want to make knee adjustments easier. It is CNC machined from 1045 high-grade carbon steel with a chamfered, black oxide finish and a burr-free center hole. The center hole is drilled to maximum depth to lighten the tool, and it works with a hand drill to lift the knee. Made in the U.S.A., it gives you a dedicated tool for knee lifting. The catch is compatibility: the fit covers SuperMax, Comet, Enco, JET, Alliant, ACER, Sharp, Webb, and Acra mills with a 9-COG interface. If that interface does not match your machine, this crank will not help. It is also a single-purpose helper rather than a workholding accessory.
EDGE TOOLS 3-inch Rotary Table Horizontal and Vertical Model 4 Slots Milling Machine
The EDGE TOOLS rotary table brings angular positioning to a small work surface. The 3-inch table is graduated in 360 degrees, and the 1:36 worm gear ratio means one full handle turn moves the table 10 degrees. The handwheel is marked in 10-minute divisions and can be set to zero. It can be mounted horizontally or vertically, so the same table works for flat and angled machining positions. The trade-off is scale: with a 3-inch table and no cross-slide, you are limited to compact workpieces and the table will not supply Y-axis movement. The center height in vertical position without a chuck is about 2-5/8 inches.
Final choice by use case
Choose the Bridgeport/Sharp knee tool crank when your mill is compatible and your main issue is knee adjustment. Choose the EDGE TOOLS rotary table when you need angular precision and your workpieces fit its table. If you are still deciding, ask whether the next setup needs the knee to move or the workpiece to rotate.
