Products for bench top machinists | LittleMachineShop.com

Key, 8x20 mm

Key, 8x20 mm - Main image
$1.25 $1.95 In stock

This key, sized 8x20 mm, is a replacement part from Sieg Industrial Group, designed for use with bench top machinery. It provides a precise fit for keyway applications where a standard 8 mm width and 20 mm length are required.

  • Dimensions: 8 mm width, 20 mm length
  • Brand: Sieg Industrial Group
  • Suitable for keyway and shaft applications on bench top machines
  • Simple, functional design for reliable performance
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Customer Reviews (4.6 / 5 · 5 reviews)

Riley B. ★★★★★

The 8x20 mm dimensions were spot-on for my lathe's keyway, and the fit is snug without any filing needed. It took me five minutes to install and get back to work.

Owen ★★★★★

Finally, a key that doesn’t wobble or slip—the 8x20 mm size fits the machinery slot perfectly. Took about two minutes to install and the bench tool feels secure again.

Evelyn E. ★★★★★

Used this as a replacement on my small lathe, and it slid right into the keyway with zero slop. The precise 8 mm width made all the difference—much tighter fit than generic keys I've tried before.