Hey, we noticed you may be using a corporate network. It's quite possible that your firewall may be blocking our normal checkout method. Here's what you can do to complete your checkout. Please checkout using a mobile device.
**We will be closed for July 4th. All orders placed after 12pm EST on July 3rd may not ship until the 7th. Have a Great 4th!
Search engines don't know if a part works with your tool or not. They work on keywords and searches. The only way to know if a part works with your tool is looking up the diagram on Milwaukees website using your cat# and serial# Click Here. If you aren't sure please message us with your cat# and serial# and we will email you the parts breakdown. Click Here.
Four Cutter Spline Bits have a series of 12 spline that slide into an equal but opposite set of Spline in the drive system of the Spline Drive Hammer. This positive engagement of Spline to Spline allows maximum transmission of energy from the Hammer to the Bit. Superior quality carbide nibs are vacuum brazed to a heat treated steel body resulting in four cutting edges which pulverize the concrete as the bit turns and pounds the work surface.
Features:
2 in. diameter, 4-cutter head
Spline shank
Drilling depth 17 in.
Overall length 22 in.
Specifications:
Pack Qty 1
Type Masonry Drill Bits
Diameter 2 in.
Length 22 in.
Style Spline
Useable Length 17 in.
Cutter Geometry 4-Cutter
Includes:
(1) Milwaukee 48-20-4419 Spline Bit 4-Cutter 2 in. x 22 in.
Review by Ryan N. on 13 May 2025review stating Best price on the web - fast shipping!
Replacement was easy and satisfying. There are guides on replacing this that make it a breeze. The yoke comes with the anvil that is prone to breaking. Renewed my 10 year old ratchet.