Product Description
Milwaukee Spline Thick Wall Core Bit Adapter 18 in.
Model Number: 48-03-3565
The Milwaukee 48-03-3565 is an 18 in. Spline Thick Wall Core Bit Adapter — an extended-length adapter that connects Milwaukee thick wall diamond core bits to Milwaukee Spline-drive demolition and rotary hammers for portable core drilling at the 18 in. working depth for through-penetrations in the thickest structural concrete sections. The Spline shank is the drive interface on Milwaukee's larger-format demolition hammers used for heavy-duty concrete work — the Spline adapter allows the substantial impact energy of these large hammers to be applied to thick wall diamond core drilling while using Milwaukee's thick wall core bit inventory. The 18 in. adapter length provides 18 additional inches of total working depth beyond the core bit barrel's standard length, enabling through-wall drilling in the thickest foundation walls, heavily reinforced structural sections, and multi-pour concrete assemblies where the standard-length adapter cannot reach from a single accessible face position.
Milwaukee precision-machines both the Spline shank and the thick wall core bit mounting interface for accurate concentricity through the adapter — at 18 in. length, any eccentricity at the connection interfaces would be amplified into significant runout at the cutting face, producing oversized holes and accelerated segment wear. The adapter is used with wet cutting throughout the drilling operation, requiring adequate water delivery through the full 18 in. length for segment cooling and slurry evacuation. Always verify that the hammer uses Spline drive rather than SDS Max before ordering — the two shank systems are distinct and not interchangeable. Follow Milwaukee's recommended procedures for feed rate and water application when using extended-length adapters.
See Milwaukee's complete thick wall core bit adapter lineup for SDS Max and Spline formats and all available adapter lengths.
Features
- 18 in. length for the thickest structural concrete beyond standard adapter depth
- Spline shank for Milwaukee Spline-drive demolition and rotary hammer platforms
- Precision-machined for concentric rotation — critical at extended 18 in. length
- Verify hammer uses Spline drive — not compatible with SDS Max shank format
- Use with continuous wet cutting for segment cooling through full 18 in. depth
Specifications
- Shank: Spline Drive
- Length: 18 in.
- Compatible Bits: Milwaukee Thick Wall Diamond Core Bits
- Compatible Hammers: Milwaukee Spline-Drive Demolition and Rotary Hammers
Includes
- (1) Milwaukee 48-03-3565 Spline Thick Wall Core Bit Adapter 18 in.
