Milwaukee 48-89-2820 Thunderbolt Drill Bit 1/16 in 12 Pack

Product Description

The MILWAUKEE 48-89-2820 is a 1/16 inch jobbers-length twist drill bit with a black oxide finish, sold in a pack of 12. Built under the Thunderbolt line, this bit features a 135-degree split point that reduces walking on contact and allows drilling to start without a center punch on most surfaces. The parabolic flute design clears chips efficiently during drilling. Overall length is 1-7/8 inches with a 7/8 inch flute length. The 3-flat shank prevents slipping in the chuck. Electricians, HVAC technicians, plumbers, and general tradespeople keep these on hand for small-diameter pilot holes and clearance holes in sheet metal, wood, and light steel.

This bit is suited for trade applications where a reliable, small-diameter drill is needed on the job. The 1/16 inch size is commonly used for pilot holes before self-tapping screws, wire routing clearance, and light fabrication work. The 12-pack format is practical for service vehicles and shop toolboxes where small bits are prone to loss or breakage and need to be restocked regularly.

Key Features

• 1/16 inch drill diameter with 135-degree split point for reduced bit walking
• Black oxide finish improves lubricity and provides basic corrosion resistance
• Parabolic flute geometry promotes efficient chip evacuation
• 3-flat shank design prevents rotation in the chuck
• Jobbers-length format: 1-7/8 inch overall length, 7/8 inch flute length
• Sold as a 12-pack for high-turnover trade use

Compatibility

Designed for use in standard drill chucks that accept a 3-flat shank. Suitable for drilling into sheet metal, wood, and light-gauge steel in residential and light commercial trade applications.

Installation Notes

Install and remove bits only when the drill or driver is fully powered down and the chuck is stationary. Secure the 3-flat shank firmly in the chuck before use to prevent slippage. For small-diameter bits like 1/16 inch, use appropriate drill speed and light feed pressure to avoid bit breakage. Dispose of dull or damaged bits promptly to maintain hole quality and operator safety.

Technical Specifications

• Drill Size: 1/16 inch
• Overall Length: 1-7/8 inches
• Flute Length: 7/8 inch
• Point Angle: 135 degrees
• Flute Type: Parabolic
• Shank Type: 3-Flat
• Point Construction: Split Point
• Finish: Black Oxide
• Length Type: Jobbers Length
• Quantity: 12 per pack

Standard Information

• Brand: MILWAUKEE
• Manufacturer Part Number: 48-89-2820