One-piece SDS-MAX Tunnel Bit 2-1/2 in. X 22 in.

MILWAUKEE® 2-1/2" X 22" SDS Max Tunnel Bits are ideal for drilling deep, wide holes in concrete, concrete with rebar, brick, and block. The large volume inclined flutes and 22" long shank allow for continuous deep hole drilling and accelerated dust removal by avoiding the need to clear a core. These concrete bits feature a robust head equipped with a 3-cutter design and a carbide centering tip for precise starts and rapid grinding of concrete and rebar. The carbide teeth are designed with rebar chamfers to quickly shear embedded rebar while maintaining maximum durability and preventing tooth breakage. For use with SDS Max rotary hammers.

• Robust head with concrete breaker for faster, more durable drilling in rebar.
• 3-cutter carbide centering tip: for precise starts and rapid grinding of concrete and rebar.
• Carbide teeth with rebar chamfers provide increased durability in demanding applications.
• Alternating carbide geometry for rapid shearing of concrete and rebar.
• Large volume inclined flutes for faster dust removal.
• 22" long shaft for deep hole drilling.
• Ideal for concrete, concrete with rebar, brick, and block.
• For use with SDS Max rotary hammers.

• Height 644.7 mm 
• Width 63.5 mm 
• Length 558.8 mm 
• Weight 1952.7 g 

• Etched / Stamped Size Identification Yes
• Chuck Fitment SDS-Max
• For Use With SDS Max Rotary Hammers
• Shank Style SDS Max
• Recommended Safety Equipment Safety Glasses
• Drill Bit Type Percussion Bit
• Arbor Hole Diameter No Arbor Hole
• Case Included No
• Color Coded No
• Quick Change Impact Driver Bit No
• Bit Type Masonry
• Bit Length 22 po
• Overall Bit Length 22
• Drilling Depth (in) 20
• Usable Length (in) 20
• Bit Diameter 2 1/2 po
• Flute Length (in) 2
• Shank Length (in) 2