1 / 9
Milwaukee MX4 SDS-Max 5/8 in. x 21 in. 4-Cutter Carbide Masonry Drill Bit
$57.72
Engineered with a solid carbide 4-cutter design, these MX4 bits deliver up to 5x longer life in concrete with rebar. Variable flutes accelerate dust removal to reduce heat, delivering up to 15% more holes per battery charge.
In Stock
Money-back guarantee
Free 30-day returns
100% Authentic
Official brand warranty
Ships from USA
Fast US warehouse dispatch
Secure checkout
256-bit SSL encrypted
We accept
Engineered with a solid carbide 4-cutter design, these MX4 bits deliver up to 5x longer life in concrete with rebar. Variable flutes accelerate dust removal to reduce heat, delivering up to 15% more holes per battery charge.
- 4-Cutter design prevents lock-up in rebar to reduce downtime
- Variable flutes remove dust faster, reducing heat and increasing holes per battery charge by up to 15%
- Solid carbide heads deliver up to 5x longer life in concrete with rebar
- Integrated rebar guards provide maximum durability in hard aggregate
- Sharp centering tips allow for exact spot drilling in concrete
- Wear mark indicator signals when the bit no longer meets ANSI requirements
- German-made quality fits all SDS-MAX rotary hammers
- Meets ANSI B212.15 to ensure compatibility with common anchors