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Borderlands 4 Guide

How to Unlock the Legendary Spinning Blade Grenade

Legendary Loot
Ordnance
By Ventu_Mortis
Updated on Sep 25, 2025
Sep 25, 2025

Overview

Spinning Blade is a Jakobs Grenade

Spinning Blade is able to be grappled to Catch the rebound to refund a grenade charge.


How to Unlock

Unlock Location:

  • Start from the fast travel point in Ruined Sumplands in the Carcadia Burn area.
  • You will find a Driller Sight, "Saw's Clench "
  • Head inside and at the end you will encounter the Gruntubulous Boss

Farm Method:

  • Defeat Gruntubulous.
  • Use the Encore Machine nearby to reset the fight.
  • Repeatedly defeat Gruntubulous untilSpinning Blade drops.

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