
Milwaukee MX4 4-Cutter SDS MAX Rotary Hammer Drill Bit 1-3/8" x 18" x 23" 48-20-8480
PUNCH THROUGH REBAR-REINFORCED CONCRETE WITH MAXIMUM DURABILITY
When your jobsite demands high-volume drilling through hard aggregate and rebar-reinforced concrete, the Milwaukee MX4™ 4-Cutter SDS MAX bit is the mechanical solution for maximum uptime. Featuring a solid head carbide design, these bits are engineered to withstand the extreme thermal and physical stress of rotary hammering without the catastrophic tip failure common in lesser 2-cutter designs. The integrated rebar guards act as a defensive shield, preventing the bit from seizing or snapping upon contact with steel reinforcement, while the sharp centering tip ensures your holes start exactly where you marked them, even on metal decking. For the professional looking to maximize battery runtime, the variable flute geometry optimizes dust extraction, reducing friction and heat to deliver up to 15% more holes per charge on M18 FUEL or MX FUEL platforms.
- / Solid head carbide construction provides up to 5x longer life in concrete with rebar compared to standard bits.
- / 4-Cutter geometry prevents lock-up in rebar, significantly reducing the risk of tool kickback and bit breakage.
- / Optimized variable flutes clear dust faster, lowering operating temperatures and extending the life of the bit.
- / Wear mark indicators provide a clear visual cue for when the bit no longer meets ANSI B212.15 requirements for anchor fitment.
- / Sharp centering tip allows for exact spot drilling, preventing bit walk on smooth or uneven concrete surfaces.
TECHNICAL SPECIFICATIONS
| Diameter | 1-3/8" |
| Usable Length | 18" |
| Overall Length | 23" |
| Shank Type | SDS-MAX |
| Cutter Count | 4-Cutter |
| Material | Solid Head Carbide |
| Standard | ANSI B212.15 |
WHAT'S IN THE BOX
(1) MX4 4-Cutter SDS MAX Rotary Hammer Drill Bit 1-3/8" x 18" x 23" (48-20-8480)
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
PUNCH THROUGH REBAR-REINFORCED CONCRETE WITH MAXIMUM DURABILITY
When your jobsite demands high-volume drilling through hard aggregate and rebar-reinforced concrete, the Milwaukee MX4™ 4-Cutter SDS MAX bit is the mechanical solution for maximum uptime. Featuring a solid head carbide design, these bits are engineered to withstand the extreme thermal and physical stress of rotary hammering without the catastrophic tip failure common in lesser 2-cutter designs. The integrated rebar guards act as a defensive shield, preventing the bit from seizing or snapping upon contact with steel reinforcement, while the sharp centering tip ensures your holes start exactly where you marked them, even on metal decking. For the professional looking to maximize battery runtime, the variable flute geometry optimizes dust extraction, reducing friction and heat to deliver up to 15% more holes per charge on M18 FUEL or MX FUEL platforms.
- / Solid head carbide construction provides up to 5x longer life in concrete with rebar compared to standard bits.
- / 4-Cutter geometry prevents lock-up in rebar, significantly reducing the risk of tool kickback and bit breakage.
- / Optimized variable flutes clear dust faster, lowering operating temperatures and extending the life of the bit.
- / Wear mark indicators provide a clear visual cue for when the bit no longer meets ANSI B212.15 requirements for anchor fitment.
- / Sharp centering tip allows for exact spot drilling, preventing bit walk on smooth or uneven concrete surfaces.
TECHNICAL SPECIFICATIONS
| Diameter | 1-3/8" |
| Usable Length | 18" |
| Overall Length | 23" |
| Shank Type | SDS-MAX |
| Cutter Count | 4-Cutter |
| Material | Solid Head Carbide |
| Standard | ANSI B212.15 |
WHAT'S IN THE BOX
(1) MX4 4-Cutter SDS MAX Rotary Hammer Drill Bit 1-3/8" x 18" x 23" (48-20-8480)













