Milwaukee 49-56-0511
Milwaukee 1/2" Diamond One-Piece Hole Saw
Model: 49-56-0511
Brand: Milwaukee
1. Introduction
This manual provides essential information for the safe and effective use of your Milwaukee 1/2" Diamond One-Piece Hole Saw (Model 49-56-0511). This diamond-tipped hole saw is engineered for superior durability, offering up to 10 times the life of standard drill bits. It is specifically designed for drilling clean, precise holes in hard and brittle materials.

The image shows the Milwaukee 1/2-inch Diamond One-Piece Hole Saw, model 49-56-0511, in its retail packaging. The packaging highlights 'DIAMOND MAX' and 'UP TO 10x LIFE', indicating its durability. It also specifies compatibility with 'PORCELAIN, TILE and STONE', and shows icons for various materials like porcelain, ceramic, granite, tile, glass, marble, and slate. The drill bit itself is red with 'Milwaukee' branding.
2. Specifications
| Feature | Detail |
|---|---|
| Brand | Milwaukee |
| Model Number | 49-56-0511 |
| Size | 1/2 inch |
| Material | Diamond |
| Color | Red |
| Product Dimensions | 5"L x 1"W |
| Item Thickness | 0.5 Inches |
| Item Weight | 0.704 ounces (0.02 Kilograms) |
| Compatible Material | Brick, Block, Cement Board, Fiberglass, Tile, Stone, Glass, Porcelain, Ceramic, Granite, Marble, Slate |
| Power Source | Manual (requires power drill) |
| Included Components | Hole Saw |
| Manufacturer | Builders World Wholesale Distribution |
| Country of Origin | China |
3. Setup
3.1 Initial Inspection
Before first use, carefully inspect the hole saw for any signs of damage or manufacturing defects. Ensure the diamond coating is intact and free from chips.
3.2 Attaching to Drill
The Milwaukee 1/2" Diamond One-Piece Hole Saw features a standard shank for easy attachment to most power drills. Follow these steps:
- Ensure your power drill is unplugged or its battery is removed before attaching the bit.
- Open the drill chuck to accommodate the hole saw's shank.
- Insert the shank fully into the chuck.
- Tighten the chuck securely to prevent slippage during operation.
4. Operating Instructions
This diamond hole saw is designed for wet drilling applications. Always use water to cool the bit and the workpiece during drilling to ensure optimal performance and extend tool life.
4.1 Drilling Procedure
- Prepare the Surface: Spray the surface of the material you intend to drill with water. Maintain a continuous flow or spray of water throughout the drilling process to prevent overheating.
- Start at an Angle: Begin drilling at a 45-degree angle to create a small notch or starting point. This helps prevent the bit from wandering on the smooth surface.
- Slowly Pivot: Once a small groove is established, slowly pivot the drill to a 90-degree (perpendicular) position relative to the surface.
- Oscillate Tool: During the cut, gently oscillate the tool in a circular motion. This helps to clear debris and allows water to flow into the cutting area, further aiding cooling and cutting efficiency.
- Maintain Water Supply: Continuously apply water to the drilling area. Overheating can damage the diamond coating and reduce the bit's lifespan.
- Apply Consistent Pressure: Apply steady, moderate pressure. Do not force the drill, as this can lead to premature wear or breakage.
5. Maintenance
5.1 Cleaning
After each use, especially when drilling through materials that produce fine dust or particles, clean the hole saw. The bit features an open slot designed to facilitate the escape of debris, preventing clogging. You can easily clean out any remaining particles by rinsing with water.
5.2 Storage
Store the hole saw in a dry place to prevent rust or corrosion. Keep it in its original packaging or a protective case to prevent damage to the diamond cutting edge.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Slow drilling / Poor cutting performance | Insufficient water cooling; Worn diamond coating; Incorrect drilling technique; Excessive pressure. | Ensure continuous water supply; Replace bit if diamond coating is worn; Review operating instructions for proper technique; Apply moderate, consistent pressure. |
| Bit overheating | Lack of water; Excessive speed/pressure. | Increase water flow; Reduce drill speed and pressure. |
| Bit wandering at start | Not starting at 45-degree angle. | Always begin drilling at a 45-degree angle to create a guide groove before pivoting to 90 degrees. |
| Clogging of debris | Insufficient oscillation; Dry drilling. | Oscillate the tool during cutting to clear debris; Ensure adequate water supply. |
7. Safety Information
Always wear appropriate personal protective equipment (PPE) including safety glasses, gloves, and hearing protection when operating power tools and drilling. Ensure your work area is well-lit and clear of obstructions.
WARNING: Proposition 65
This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
8. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the official Milwaukee Tool website or contact their customer service department. Keep your purchase receipt as proof of purchase.
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