Supergrit Abrasives

4" Long Extension 1/4-20" Threaded Male to 1/4" shaft (54185)

4" Long Extension 1/4-20" Threaded Male to 1/4" shaft (54185) - Main image
$2.56 $3.5 In stock

The Supergrit Abrasives 4" Long Extension (54185) connects a 1/4-20" threaded male fitting to a 1/4" shaft, adding reach between compatible tooling and accessories.

  • 4" long extension
  • 1/4-20" threaded male end
  • 1/4" shaft end
  • SKU: 4EXT-M1/4
  • Brand: Supergrit-Dev

This extension is intended for use with matching 1/4-20" threaded and 1/4" shaft connections. Confirm thread and shaft compatibility before use.

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

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Customer Reviews (4.4 / 5 · 5 reviews)

Sophia X. ★★★★★

My drill setup was always too bulky for tight spots, but this 4-inch shaft extension slipped right on and gave me the reach I needed without any wobble. Threads mated cleanly to my 1/4-20 accessories, and it feels solid enough for daily use.

Hannah H. ★★★★★

The threads on this extension fit both my drill chuck and backing plate perfectly, no wobble at all. It's a solid little piece for getting into tight spots where my regular setup won't reach.

Andrew S. ★★★★☆

I needed a bit more clearance for sanding inside a tight cabinet, and this 4-inch extension did exactly that. The threads engaged smoothly with my backing plate, no wobble at all. Just wish it came in a slightly longer option for really deep spots.