Compact format
Spider 3M
Small cup housing · Separate anchor workflow
The compact Spider 3M keeps anchoring separate. Spider 4M brings more of the routing and anchoring work into one frame.
Compact format
Small cup housing · Separate anchor workflow
Integrated format
D-frame · Improved pump access · Striker notch
The central difference is where the anchoring and line-management work happens.
Spider 3M uses its compact winding cup with a separately positioned A3 anchor cup to establish the line path.
Spider 4M combines winding and anchoring features in its D-frame, reducing dependence on a second cup in suitable setups.
The trade-off: flexible component placement versus fewer separate elements on the glass.


Spider 3M relies on suction-cup placement and the selected line-routing setup.
Spider 4M can use the notch in its frame on a suitable vehicle door striker, following the tool instructions.
It is an option, not a shortcut. Seat and align the frame exactly as instructed before applying tension.
The smaller Spider 3M housing keeps the glass footprint compact, with tighter access around the pump.
Spider 4M arches the frame around the plunger to provide more finger clearance during setup.
Choose for the actual workspace: compact landing area and pump access pull in opposite directions.

| Specification | Spider 3M | Spider 4M |
|---|---|---|
| Frame layout | Compact cup assembly | Integrated D-frame |
| Anchor workflow | Separate A3 anchor cup | Integrated frame; striker-notch option |
| Spindle connection | Projecting male hex | Projecting male hex |
| Pump access | Standard compact clearance | Expanded finger clearance |
| Glass footprint | Smaller | Larger integrated frame |
| Current kit entry | Spider 3M 300K | Spider 4M 300 |
Spider 3M moves flexibility into separately placed components. Spider 4M moves more of the workflow into the tool frame.
Choose the compact cup assembly when limited glass space and flexible placement of a separate anchor cup suit the work.
Explore Spider 3M →Choose the integrated frame when built-in routing, easier pump access and the striker-notch option fit your routine.
Explore Spider 4M →Clean the glass and pad, establish vacuum and monitor the indicator throughout use.
Use the specified bit, drill speed and clutch guidance rather than forcing a stalled line.
Keep bends deliberate and the line feeding cleanly onto the winding hardware.
This page compares platform layout and setup choices. It does not replace the operating manual. Confirm current kit contents and use the instructions supplied with the exact product.