Question 1

What materials can the Milwaukee 48-20-7663 SDS Plus Drill Bit Kit drill?

Accepted Answer

The Milwaukee 48-20-7663 MX4 4-Cutter SDS Plus Drill Bit Kit is designed for concrete with rebar and masonry applications. Its solid head carbide construction and rebar guards help the bits handle hard aggregate and reinforced concrete, while the sharp centering tips support precise drilling in concrete and metal decking.

Question 2

How does the 4-cutter design help when drilling through rebar?

Accepted Answer

The four-cutter head is designed to help prevent the drill bit from locking up when it encounters rebar. This can help reduce interruptions and downtime during reinforced concrete drilling. The rebar guard design also provides added durability for demanding applications involving hard aggregate and embedded reinforcement.

Question 3

Which SDS Plus rotary hammers can use these drill bits?

Accepted Answer

The Milwaukee 48-20-7663 drill bits are designed to fit SDS Plus rotary hammers. This makes the kit suitable for users who already operate compatible SDS Plus rotary hammer tools for concrete, masonry, and related drilling applications. Always verify the tool's SDS Plus compatibility before use.

Question 4

What drill bit sizes are included in the Milwaukee 48-20-7663 kit?

Accepted Answer

The kit includes eight bits covering several common sizes: 5/32-inch, 3/16-inch, 1/4-inch, 5/16-inch, 3/8-inch, and 1/2-inch. The set includes two 3/16-inch bits and two 1/4-inch bits, with the other listed sizes supplied as one each.

Question 5

How can the wear mark indicator help with bit replacement?

Accepted Answer

Each MX4 4-Cutter drill bit features a wear mark indicator that helps users identify when the bit has reached the end of its usable service life and no longer meets the ANSI requirement. This provides a visual reference for monitoring bit wear during repeated concrete and masonry drilling applications.

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