Introduction
This manual provides essential information for the safe and effective use of your Grizzly G1506 HSS Square Tool Bit. Please read this manual thoroughly before using the tool bit and retain it for future reference.
Product Overview
The Grizzly G1506 is a High-Speed Steel (HSS) square tool bit designed for various machining applications, primarily on metal lathes. Its M-2 HSS composition contributes to its durability and performance. This tool bit can also be ground down for specialized tasks such as metal engraving.

Image: Grizzly G1506 HSS Square Tool Bit. This image shows the square profile of the tool bit, which is made of High-Speed Steel. The dimensions 3/16" x 2-1/2" are typically etched on the side.
Key Features:
- Material: M-2 High Speed Steel (HSS) for enhanced durability.
- Shape: Square profile, suitable for various cutting and shaping operations.
- Versatility: Can be used as-is or ground to custom profiles for specific applications.
Setup
Proper setup is crucial for safe and effective operation. Always ensure the tool bit is securely mounted before beginning any work.
- Inspection: Before each use, inspect the tool bit for any signs of damage, cracks, or excessive wear. Do not use a damaged tool bit.
- Mounting: Insert the G1506 tool bit into a compatible tool holder on your metal lathe or other appropriate machine. Ensure the tool bit is seated firmly and extends only as far as necessary to minimize deflection.
- Securing: Tighten all set screws or clamping mechanisms on the tool holder to secure the tool bit in place. Verify that the tool bit cannot shift or rotate during operation.
- Alignment: Align the cutting edge of the tool bit with the workpiece as required for your specific machining operation. Refer to your machine's manual for precise alignment procedures.
Operating Instructions
Always prioritize safety when operating machinery with the G1506 tool bit. Wear appropriate personal protective equipment (PPE) including safety glasses, hearing protection, and gloves.
General Use on Metal Lathes:
- Workpiece Securement: Ensure the workpiece is securely clamped in the chuck or collet.
- Speed and Feed Rates: Set appropriate spindle speeds and feed rates based on the material being machined, the desired finish, and the rigidity of your setup. Consult machining handbooks for recommended parameters.
- Cutting Fluid: Apply suitable cutting fluid to prolong tool life and improve surface finish, especially when machining harder materials.
- Chip Management: Monitor chip formation. Long, stringy chips may indicate incorrect feed/speed or a dull tool.
- Depth of Cut: Start with light cuts and gradually increase the depth of cut as you become familiar with the material and tool performance.
Grinding for Custom Profiles:
The G1506 can be ground to create custom cutting edges. Use a suitable grinding wheel (e.g., aluminum oxide for HSS) and ensure proper cooling to prevent overheating, which can degrade the tool's hardness.
- Always wear eye protection and follow grinder safety guidelines.
- Grind slowly and apply light pressure.
- Quench the tool bit frequently in water or cutting fluid to dissipate heat.
Maintenance
Proper maintenance extends the life of your Grizzly G1506 tool bit and ensures consistent performance.
- Cleaning: After each use, clean the tool bit to remove chips, coolant residue, and any other debris. A wire brush or compressed air can be used.
- Sharpening: Regularly sharpen the cutting edge as it becomes dull. A sharp tool bit produces better finishes and reduces stress on your machine. Use appropriate grinding techniques to maintain correct rake and relief angles.
- Storage: Store the tool bit in a dry environment to prevent corrosion. Consider using a light coat of oil for long-term storage. Keep it in a protective case or organizer to prevent chipping of the cutting edge.
- Inspection: Periodically inspect the tool bit for signs of wear, cracks, or deformation. Replace if significant damage is observed.
Troubleshooting
This section addresses common issues encountered during the use of the G1506 tool bit.
| Problem | Possible Cause | Solution |
|---|---|---|
| Poor Surface Finish | Dull tool bit, incorrect speed/feed, excessive vibration, insufficient coolant. | Sharpen tool, adjust speed/feed, check machine rigidity, apply more coolant. |
| Excessive Tool Wear | Too high speed/feed, lack of coolant, hard material, improper tool geometry. | Reduce speed/feed, use coolant, verify material hardness, regrind tool. |
| Tool Bit Chipping/Breakage | Excessive depth of cut, sudden impact, improper clamping, material inclusions. | Reduce depth of cut, ensure secure clamping, inspect workpiece, replace tool. |
Specifications
| Attribute | Detail |
|---|---|
| Model Number | G1506 |
| Material | M-2 High Speed Steel (HSS) |
| Dimensions (L x W x H) | Approx. 2-1/2 inches (63.5 mm) x 3/16 inches (4.76 mm) x 3/16 inches (4.76 mm) |
| Product Dimensions (Metric) | 4.45 x 10.8 x 0.64 cm (as per packaging) |
| Item Weight | 10 g (0.03 lbs) |
| Manufacturer | Grizzly |
| ASIN | B0000DD0KV |
Warranty and Support
For information regarding warranty coverage, technical support, or to purchase replacement parts, please contact Grizzly customer service or visit their official website. Keep your purchase receipt for warranty claims.
Note: Specific warranty terms may vary. Refer to the documentation provided at the time of purchase or the manufacturer's official website for the most current information.





