Product Description
Milwaukee 5/8 in. Titanium Silver and Deming Drill Bit
Model Number: 48-89-4636
The Milwaukee 48-89-4636 is a 5/8 in. Titanium Silver and Deming Drill Bit — a large-diameter precision metal drill bit with a reduced 1/2 in. straight shank that fits standard 1/2 in. keyless and keyed drill chucks while providing access to the 5/8 in. cutting diameter that exceeds standard full-shank drill bit capacity for typical 3/8 in. and 1/2 in. chuck drills. The Silver and Deming design bridges the gap between the small standard diameters that fit in typical drill chucks and the large diameters that require specialty magnetic drills or drill presses — making 5/8 in. metal hole drilling accessible with the corded and cordless drills already in inventory without requiring dedicated large-chuck equipment for every large-bore application. The titanium nitride (TiN) coating applied to the high-speed steel body increases surface hardness and reduces friction at the cutting edge, extending bit life compared to uncoated HSS in metal drilling applications where heat generation and cutting edge wear are the primary service life limiting factors.
The 5/8 in. cutting diameter handles the large-format holes required for specific structural bolt clearances, large fastener access holes, and precision fits where the 5/8 in. diameter is specified for the hardware being installed. Using the Silver and Deming at a drill press or with a magnetic drill with proper speed control and cutting oil provides the best results in steel at this large diameter — the controlled speed prevents overheating that destroys HSS cutting edges, and cutting oil lubricates and cools the cutting interface throughout the drilling cycle. Milwaukee's reduced-web design removes steel at the bit's center to lower thrust requirements for more manageable drilling at the large 5/8 in. diameter.
See Milwaukee's complete Titanium Silver and Deming lineup for all available sizes and for specialty drill bits for high-production metal drilling applications.
Features
- Titanium (TiN) coating for extended cutting life vs. uncoated HSS in metal drilling
- 5/8 in. cutting diameter with 1/2 in. reduced shank for standard drill chuck compatibility
- Silver and Deming enables large-diameter holes without specialty large-chuck equipment
- Use with cutting oil and controlled speed for best results in steel drilling
- Reduced-web design lowers thrust requirement for more manageable large-bore drilling
Specifications
- Cutting Diameter: 5/8 in.
- Shank Diameter: 1/2 in. (Reduced)
- Coating: Titanium Nitride (TiN)
- Application: Steel, Iron, Aluminum — Large-Diameter Metal Hole Drilling
Includes
- (1) Milwaukee 48-89-4636 5/8 in. Titanium Silver and Deming Drill Bit
