Quick Take
If you already own a knee mill, you can add indexing without buying another machine by choosing a rotary table or dividing head. If you do not have a mill, the PM-25MV is the complete benchtop package here, with a 3-axis DRO and stand included in the model. A separate Bridgeport/Sharp knee crank covers the simpler job of raising and lowering the knee on compatible 9-COG interface mills. Listed prices run from USD 25.00 for the crank to USD 3,799.00 for the full milling machine.
Listed Price Comparison
| Product | Listed Price | Price Bar |
|---|---|---|
| Bridgeport/Sharp Milling Machine Knee Tool Crank | USD 25.00 | |
| Indexing Dividing Head BS-1 6" 3 Jaw Chuck & Tailstock | USD 303.99 | |
| PM-25MV Precision Benchtop Milling Machine w/ 3-Axis DRO! STAND | USD 3,799.00 | |
| 3" inch 75mm Rotary Table Horizontal And Vertical Model 4 Slots | USD 64.89 |
Decision Matrix
| Product | Type | Best For | Limitation to Keep in Mind |
|---|---|---|---|
| Bridgeport/Sharp Knee Crank | Manual crank accessory | Raising/lowering the knee on compatible 9-COG interface mills | Only handles knee travel, not spindle or table work |
| Uimoso Indexing Dividing Head | Manual indexing head with 6" chuck and tailstock | Between-center and chuck indexing jobs | Heavy 77 lb bench accessory; manual operation |
| PM-25MV Benchtop Mill | Complete milling machine | Full drilling and milling capability with stand and 3-axis DRO | Manual control; no CNC automation |
| EDGE TOOLS Rotary Table | Compact rotary table | Small circular parts and horizontal/vertical positioning | No cross-slide; rotary movement only |
Product Notes
Bridgeport/Sharp Milling Machine Knee Tool Crank - Crank It up
This crank is built for a specific job. It is described as made from 1045 high-grade carbon steel with a black oxide finish and a center hole drilled to reduce weight, and the country of origin is the United States. The listing pairs it with 9-COG interface mills from SuperMax, Comet, Enco, JET, Alliant, ACER, Sharp, Webb, and Acra. If your mill matches that interface, the crank gives you a manual way to lift the knee without needing a separate powered lift. The trade-off is scope: it doesn't add cutting ability, spindle control, or table movement. It is an accessory for the machine you already own, not a standalone tool.
Indexing Dividing Head BS-1 6" 3 Jaw Chuck & Tailstock for CNC Milling Machine
This is a manual indexing head from Uimoso, and it comes with a 6" three-jaw chuck and a tailstock. The headstock can orient horizontally or tilt 90 degrees, and the listed center height is 5". With a 1:40 reduction ratio, 24 quick-dividing holes, and laser-engraved scales, it's set up for repeatable indexing. It weighs 77 lb, so plan for a sturdy bench. The limitation is that it doesn't create spindle power; it holds and divides work while your mill does the cutting. If you need to machine flats, hexes, or gear blanks between centers, this gives you the chuck and tailstock support in one bundle.
PM-25MV Precision Benchtop Milling Machine w/ 3-Axis DRO! STAND
This complete benchtop mill from Precision Matthews is the only full machine in the group. The model name includes a 3-axis DRO and a stand, and the description highlights a quill DRO for spindle up/down movement, a 3-bolt head mount, and a 0.001" reading on the X/Y axis dials. It runs on electricity with a 1 hp spindle and a 2,500 RPM max, and its listed functions are drilling and milling. If you are starting with nothing, this is the only option that brings spindle, table, and stand together. The limitation is that control is manual, so you won't get CNC automation from this package; the investment is also far above the accessory listings in this comparison.
3" inch 75mm Rotary Table Horizontal And Vertical Model 4 Slots Milling Machine
This EDGE TOOLS rotary table is a compact 3" / 80 mm table that can be mounted horizontally or vertically. The handwheel is graduated in 10-minute divisions and can be zeroed, and the 1:36 worm gear ratio means one handle rotation turns the table 10 degrees. It's a simple way to add circular positioning for small parts without adding a heavy full-sized table. The trade-off is visible in the attributes: Cross-Slide is listed as No, so don't expect X/Y sliding on this accessory. It is for rotary indexing, not for linear table feed. For a small mill or drill press setup, this is a straightforward entry point into rotary work.
Final Recommendation
Choose based on what is already on your shop floor.
- Need a complete drilling and milling machine with a stand, DRO, and 1 hp spindle? The PM-25MV Precision Benchtop Milling Machine w/ 3-Axis DRO! STAND is the full package.
- Already own a 9-COG interface mill and want to add indexing? The Uimoso Indexing Dividing Head BS-1 with 6" chuck and tailstock gives you chuck and between-center workholding.
- Small circular parts and horizontal or vertical rotation? The EDGE TOOLS 3" rotary table is a compact addition with a zeroable handwheel.
- Just want easier knee movement on a compatible Bridgeport/Sharp-style mill? The Bridgeport/Sharp knee tool crank is the dedicated accessory for that.
