Products for bench top machinists | LittleMachineShop.com

Key, 6x18 mm

Key, 6x18 mm - Main image
$0.6 $0.95 In stock

The Key, 6x18 mm is a small replacement key intended for use on numerous mini mills. It is listed under the Sieg Industrial Group brand and is available as a standard item with SKU 6285.

  • Size: 6 mm x 18 mm
  • Used on numerous mini mills
  • Brand: Sieg Industrial Group
  • SKU: 6285
  • Standard option
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Riley Z. ★★★★★

This 6x18 mm replacement fits my mini mill perfectly, no filing or adjustments needed. Solid machining, and the flat edges seat securely in the collet every time.

Stella ★★★★★

Slipped right into my mini mill's shaft with zero filing needed—the 6x18 mm dimensions were spot-on. I was worried about finding the right replacement, but this key fits perfectly and feels sturdy enough for daily use.

Sophia ★★★★★

My mini mill’s old key was stripped, but this 6x18 mm replacement slid right into the slot and hasn’t budged since. The machined edges feel precise and solid—no wobble at all when I run the spindle. Exactly what I needed for a quick fix.