Product Description
Milwaukee SDS+ Bit 3/8 in. x 22 in. x 24 in.
Model Number: 48-20-7459
The Milwaukee 48-20-7459 is an SDS+ rotary hammer drill bit in 3/8 in. diameter with a 22 in. working length and 24 in. overall length — the maximum extended-reach configuration at the most heavily used commercial anchor diameter, providing the deepest working depth available in the standard 3/8 in. SDS+ bit lineup for the most extreme structural anchor installations and through-penetration applications. The 24 in. overall length enables drilling through the thickest structural concrete sections, making through-penetrations from the surface of deep foundations, completing extra-deep embedment structural anchor installations where engineering specifications require the maximum available embedment depth for the highest pull-out load ratings, and accessing drilling locations through multiple architectural and structural layers where the total depth from drill position to required hole bottom exceeds what any standard or intermediate-length 3/8 in. bit can reach.
Milwaukee 44 Magnum SDS+ bits feature carbide vacuum-brazed to heat-treated steel shanks with optimized helical fluting specifically engineered for the challenge of small-diameter extreme-length drilling — maintaining effective concrete debris evacuation through the full 22 in. working depth at 3/8 in. diameter requires careful flute pitch and geometry optimization because the available flute cross-section at this diameter is limited relative to the debris transport length required. Milwaukee's flute engineering for this configuration keeps concrete debris moving continuously from the base of the 22 in. deep hole to the surface, preventing the choking that would force repeated drilling interruptions for hole clearing. The SDS+ shank provides tool-free engagement in all SDS+ rotary hammers. This is a specialty bit for applications specifically requiring the 3/8 in. diameter at the maximum available SDS+ standard bit length.
See Milwaukee's complete 44 Magnum SDS+ catalog for all lengths at the 3/8 in. diameter — the 24 in. is the maximum standard reach for this popular anchor drilling size.
Features
- 24 in. overall length — maximum reach for 3/8 in. SDS+ at any standard configuration
- Carbide tip vacuum-brazed to heat-treated steel shank for extreme-depth anchor drilling
- Flute optimized for debris evacuation through full 22 in. working depth
- 3/8 in. for structural anchors requiring deepest standard SDS+ embedment depth
- SDS+ shank for tool-free engagement on all SDS+ rotary hammers
Specifications
- Diameter: 3/8 in.
- Working Length: 22 in.
- Overall Length: 24 in.
- Shank: SDS+
- Tip: Carbide, Vacuum-Brazed
Includes
- (1) Milwaukee 48-20-7459 SDS+ Bit 3/8 in. x 22 in. x 24 in.
