Products for bench top machinists | LittleMachineShop.com

Key, 3x10 mm

Key, 3x10 mm - Main image
$0.42 $0.65 In stock

Key, 3x10 mm is a small machine key listed by LittleMachineShop.com for bench top machinist use. The product name and current description identify it as a 3 x 10 mm key, and the brand field lists Sieg Industrial Group. This listing is for the Standard option, SKU 2131.

  • Product: Key, 3x10 mm
  • Size indicated by name: 3 x 10 mm
  • Brand: Sieg Industrial Group
  • SKU: 2131
  • Standard option

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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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)

Elizabeth ★★★★★

Finally found the correct size for my mini lathe's gear train — these 3x10 mm keys fit perfectly and are precision-ground enough that I didn't need to file anything. The machined finish is clean and square, exactly what you need for a tight keyway fit.

Grace ★★★★★

Took me a while to find a 3x10 mm key that actually fits these bench-top machines, and this one seats perfectly in the slot with no slop. Good enough that I bought a spare to keep in the drawer.

Daniel ★★★★★

Finally, a replacement that matches the original Sieg keyway exactly — the 3x10mm dimensions were spot-on for my mini lathe. Slid right in with no filing needed.