Product Description
Milwaukee 9/16 in. Titanium Silver and Deming Drill Bit
Model Number: 48-89-4634
The Milwaukee 48-89-4634 is a 9/16 in. Titanium Silver and Deming Drill Bit — a large-diameter precision metal drill bit with a reduced 1/2 in. straight shank for use in standard 1/2 in. keyless and keyed drill chucks, providing access to the 9/16 in. cutting diameter that exceeds what standard full-shank drill bits can accommodate in typical drill chuck capacities. The Silver and Deming design addresses the need for drilling large-diameter holes in metal without investing in specialty large-chuck magnetic drill equipment — the 1/2 in. reduced shank allows the 9/16 in. cutting diameter to be used in the standard drill already in the tool kit. The titanium nitride (TiN) coating provides increased surface hardness and reduced friction at the cutting edge compared to uncoated HSS, extending bit life in metal drilling where heat and cutting edge wear are the primary service life limiting factors.
The 9/16 in. cutting diameter serves specific structural bolt clearance applications, large fastener access holes, conduit flange hole drilling, and precision metalwork fits where the 9/16 in. diameter is called for in the hardware specification being installed. Using the Silver and Deming at controlled speed with cutting oil provides the best results in steel and iron — the large cutting face requires more careful speed management than small-diameter bits to prevent overheating that would destroy the HSS cutting edges. Milwaukee's reduced-web design at the center of the bit lowers the drilling thrust requirement for more manageable drilling at this large diameter.
See Milwaukee's complete Titanium Silver and Deming lineup for all available large diameters in the reduced-shank format for standard chuck use.
Features
- TiN coating for extended cutting life vs. uncoated HSS in steel drilling
- 9/16 in. cutting diameter on 1/2 in. reduced shank for standard drill chuck use
- Enables large-diameter holes without specialty large-chuck magnetic drill equipment
- Use with controlled speed and cutting oil for best results in steel
- Reduced-web center lowers thrust requirement for manageable large-bore drilling
Specifications
- Cutting Diameter: 9/16 in.
- Shank Diameter: 1/2 in. (Reduced)
- Coating: Titanium Nitride (TiN)
- Application: Steel, Iron, Aluminum — Large-Diameter Metal Hole Drilling
Includes
- (1) Milwaukee 48-89-4634 9/16 in. Titanium Silver and Deming Drill Bit
