The T33847 Three Flute Quick-Release Hex Shank Speed Boring Bit Set, 6 Pc.

Regular price $31.06

Shipping calculated at checkout.

The T33847 6-Piece Three Flute Speed Boring Bit Set

Out perform traditional spade bits with notable speed and efficiency. The bits in this 6-piece set are designed to optimize drilling efficiency, wood chip removal, and self-feeding while providing improved control and versatility.

Recognized for its remarkable hardness, these bits are constructed from #65 high-carbon steel, ensuring consistent durability and resilience.

Bid farewell to bothersome clogs. The three-flute design allows ample space for wood chips to escape during drilling, preventing chip buildup and clogging. This ensures a clear-cutting path, reducing the risk of overheating the bit or workpiece and shortening cutting time.

The full screw tip at the bit's end enables self-feeding into wood materials, reducing the need for excessive manual pressure and facilitating precise hole starts.

Equipped with a quick-release hex shank, the bits ensure no slippage during use in a drill. The quick-release functionality allows compatibility with impact drivers or drills featuring a quick-release chuck.

Whether you're a professional tradesperson or a DIY enthusiast, these Grizzly PRO bits can notably improve your drilling experience.

The set includes a plastic case for convenient storage and protection.

For all customer service inquiries especially those relating to ordering and fulfillment please click HERE or go to the Mark Newton Custom Woodcraft ‘Contact’ page to let us know how we can help you.

For technical assistance and parts inquiries enjoy legendary technical support from the Grizzly Technical Support Team HERE.


  • #65 High-carbon steel
  • Three flutes for efficient chip ejection
  • Full screw tip for self-feeding
  • Hex shank
  • Manufactured in an ISO 9001 factory SIZES:
  • 1/2"
  • 5/8"
  • 3/4"
  • 7/8"
  • 1"
  • 1-1/4"

Customer Reviews

Be the first to write a review