Outside 90 Grooved Mud Heads

(OA90 & OA90-325)

Proportionate grooves give you a consistent mud distribution on the 90 degree outside angles and speeds up the pre-filling process. Made out of UHMW, the strong durable design makes these Mud Heads the best on the market.


  • Available in Outside 90° angle
  • OA90-325 for 325 No-Coat
  • Quick release clip
  • Channeled grooves for evenly dispersed mud and controlled flow
  • Long lasting, durable and strong
  • Machined using top quality Ultra High Molecular Weight materials
  • Machined in our state of the art facility in Canada

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We're Available around the world and online

Columbia has Dealers located across the globe and on many online drywall tool vendor sites. Our family of Dealers is ready to provide you the highest level of service and support. Please visit our ‘Find a Dealer’ page to see all our dealers and find the one most convenient for you.