WESTMORE MS49-10 Porting Contour Cutter Counterbore Shank 7/8-14 3/4

( Brand: Westmore ), ( Item Type: Porting Tool Contour Cutter ), ( Manufacturer Part Number: MS49-10 ), ( California Prop 65 Warning: Warning ), ( Country Of Origin: United States ), ( Unit Type: Unit ), ( Bundle Listing: No ), ( Type: Contour Cutter ), ( Applicable Regions: Usa )

Review WESTMORE Porting Contour Cutter 7/8-14 Counterbore 3/4 Inch Shank Lot

The Westmore MS49-10 Porting Cutter is a versatile and powerful tool designed for contour cutting and counterboring applications in the automotive and racing industries. This 7/8-14 counterbore cutter features a 3/4 shank, making it compatible with a wide range of drill presses and milling machines.

The MS49-10 is engineered with a high-speed steel (HSS) body and carbide-tipped cutting edges, ensuring exceptional durability and longevity. The HSS body resists wear and heat build-up during operation, while the carbide tips provide superior cutting performance and resistance to chipping.

This contour cutter boasts a unique design with a 12-degree included angle on the cutting edge. This angle allows for precise contour cutting and reduced material build-up, resulting in smoother, more accurate cuts. The MS49-10 also includes a 3/4-inch counterbore diameter, allowing for the installation of various fasteners and threaded inserts.

The Westmore MS49-10 Porting Cutter is easy to use and maintain. It comes with a protective sheath to keep the cutting edges sharp during storage and transportation. Additionally, the cutter is designed to be used with water or coolant, reducing friction and heat build-up during operation, resulting in longer cutting tool life and improved machining performance.

With its robust construction, superior cutting performance, and versatile design, the Westmore MS49-10 Porting Cutter is an essential tool for any automotive or racing workshop. Whether you're working on engine heads, intake manifolds, or other complex machining projects, this contour cutter delivers the precision, power, and durability you need to get the job done right.

The Westmore MS49-10 Porting Cutter is a specialized tool used for contouring and counterboring cylinder heads in engine building. Here are the pros and cons of buying this specific model:

1. Versatile: This cutting tool is designed to handle both contouring and counterboring jobs. This means you can save time and money by having one tool for multiple tasks.

2. Durable: The MS49-10 Porting Cutter is made of high-quality materials, including a tungsten carbide cutting tip and a hardened steel shank. This ensures that the tool can withstand the rigors of engine building and lasts for a long time.

3. Precise: The MS49-10 Porting Cutter offers precise cutting capabilities, allowing you to make accurate contours and counterbores in your cylinder heads.

4. Easy to Use: This tool is relatively easy to use, even for those who are not experienced engine builders. The 3/4 shank size is also a common size, making it compatible with many different drill presses and other power tools.

1. Expensive: The MS49-10 Porting Cutter is a premium tool and comes with a premium price tag. It may not be within everyone's budget.

2. Requires Experience: While the tool itself is relatively easy to use, the process of porting and counterboring cylinder heads requires a certain level of experience and skill. If you are new to engine building, it may be worth considering hiring a professional or taking some classes before attempting to use this tool.

3. Limited to Specific Applications: The MS49-10 Porting Cutter is designed for contouring and counterboring cylinder heads. It may not be suitable for other types of metalworking or fabrication projects.

The Westmore MS49-10 Porting Cutter is a high-quality, versatile tool that is ideal for engine builders who need to contour and counterbore cylinder heads. While it comes with a premium price tag, its durability, precision, and ease of use make it a worthwhile investment for those who need it for their projects. If you are new to engine building or only need to do occasional porting and counterboring, it may be worth considering renting the tool or hiring a professional to do the work for you. Overall, the MS49-10 Porting Cutter is a valuable addition to any engine builder's toolbox.

part # ms4910 price

• $45.00

specifications cncmano:

• brand: Westmore
• item type: Porting Tool Contour Cutter
• manufacturer part number: MS49-10
• california prop 65 warning: Warning
• country of origin: United States
• unit type: Unit
• bundle listing: No
• type: Contour Cutter
• applicable regions: Usa

shipping cncmano:

• service: USPS Priority Mail
• type: Fixed
• class: Expedited
• carrier: USPS
• transit: 3-7 Days
• cost: $12.95

offer cncmano:

• started: March 25, 2026
• availability: In Stock
• sold: 0
• quantity: 2
• options: Ship-to-home
• best offers: True

returns cncmano:

• paid by: Buyer
• policy: Returns Accepted
• time: 30 Days
• method: Money back

seller cncmano:

• # reviews: 24484
• rating: 99.7%

payments cncmano:

• other
• credit card: Discover
• wallet: Google-pay

general cncmano:

• Business Industrial > CNC, Metalworking Manufacturing > Other CNC, Metalworking Manufacturing
• condition: Used

Westmore MS49-10 Is Similar To:

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• Westmore Mc6-8 Porting Tool 3/4-16 Contour Cutter 1/2 Inch Shank Lot # 5 (71.4% similar) $45.00. (March 25th, 2026)