High Speed Steel Pilot Bit 1/4" x 3-1/2"

The Milwaukee 49-56-8010 is a THUNDERBOLT® Pilot Drill Bit (1/4" x 3-1/2").

What it is

• Type: Hole saw pilot bit
• Model: 49-56-8010
• Size: 1/4" diameter × 3-1/2" length
• Shank: 1/4" 3-flat shank
• Material: High-speed steel (HSS)

What it does

This is the center bit used inside hole saw arbors. It:

• Starts the hole and keeps the hole saw centered
• Prevents “walking” on metal or wood surfaces
• Works with Milwaukee hole saw arbors (like 49-56-7000 / 7040 series)

Key features

• 135° split point tip → helps it start without drifting
• Parabolic flutes → clears chips faster, runs cooler
• Thunderbolt® reinforced web → stronger core, less breakage under side load
• 3-flat shank → prevents slipping in the arbor or drill chuck
• Works in metal and wood applications

In plain terms

This is just the drill bit that guides your hole saw. It doesn’t cut the big hole itself—it makes sure the hole saw starts in the right spot and stays centered.

Where it fits in your Milwaukee system

• 49-56-7000 / 7040 / 7110 series → arbors (holders)
• 49-56-8010 (this one) → pilot drill bit inside the arbor
• 49-56-52xx / 56xx / 06xx → actual hole saws