Magnus Key Shims For Black Widow Key Cutting Machine Set of 6 Pieces For Commercial Keys

Magnus Key Shims For Black Widow Key Cutting Machine Set of 6 Pieces For Commercial Keys

Keep thin, hard-to-hold key blanks steady in your edge-cut jaws with this small but essential shim kit. Made from slightly flexible PLA, these shims protect blanks from slipping while being gentle on your cutters if they ever meet. Say goodbye to improvised shims — reliable, precise fit guaranteed.

Why you’ll like it

• Slim, flexible PLA gives the right balance of grip and give — holds thin keys securely without damaging cutters.
• Color-coded sizes make it fast to grab the right shim for the job.
• Compact kit includes a chain so the shims stay together and are easy to keep on your bench or hang on a keyring.

What’s included

• 2 × Flat shim (Black)
• 2 × Left Groove Shim (Green)
• 2 × Right Groove Shim (Blue)
• 1 × small chain (removable) to keep shims together

Compatibility

SFIC key blanks are well-known for requiring high precision during cutting. Many SFIC keyways have a tendency to tilt in the machine jaw, which can lead to inaccurate cuts. This issue can usually be prevented by placing a shim underneath the key while clamping it in the jaw.

Below is a guide indicating which SFIC key blanks require a shim for proper holding in various key machine jaws, and which can be clamped securely without one:

• A: No shim needed
• J: BLACK shim
• TE: No shim needed
• B: No shim needed
• JK: No shim needed
• WA: No shim needed
• BA: No shim needed
• K: BLACK shim
• WC: No shim needed
• C: No shim needed
• L: BLACK shim
• WD: No shim needed
• D: BLUE shim
• M: BLACK shim
• WE: Tilt key upwards while clamping
• DD: No shim needed
• N: No shim needed
• WG: No shim needed
• DE: No shim needed
• P: BLACK shim
• WH: No shim needed
• E: No shim needed
• Q: BLACK shim
• WY: No shim needed
• F: No shim needed
• R: BLACK shim
• Arrow64: BLACK shim
• FM: BLACK shim
• TA: No shim needed
• 1C/SC: BLACK shim
• G: GREEN shim
• TB: No shim needed
• 1D/SD: No shim needed
• GP: BLACK shim
• TC: No shim needed
• KMT300: No shim needed
• H: No shim needed
• TD: No shim needed

How to use (quick)

• Seat the blank as normal.
• Place the appropriate shim between the key blank and the jaw in the machine.
• Tighten the jaw — the shim prevents thin blanks from slipping
• Remove shim after cutting; reuse as needed.

Care & Safety

• Made of plastic — do not expose to high heat (e.g., direct sunlight on a hot day, car dashboards, or near heat guns).
• Designed to be cutter-friendly, but inspect for wear or damage regularly and replace if cracked.
• Keep away from open flames.

Specifications

• Brand: Magnus
• Type: Key Shims (Commercial / SFIC)
• Includes: 2 Flat (Black), 2 Left Groove (Green), 2 Right Groove (Blue), 1 Chain
• Material: PLA Plastic