Expansion Reamers

Expansion Reamers

Atlas Cutting Tools stocks a selection of USA precision manufactured and high performance Expansion Reamers. Buy with confidence and at affordable prices along with same day shipping.

Expansion reamers are precision tools that can be reused multiple times and are generally used for reaming abrasive material. They are built with slots cut between the flutes and a tapered screw in the head. As the reamer is used and the cutting edges are worn down, the user simply turns the screw to expand the reamer, re-clears it, sharpens it back to its original size and goes right back to work.  Expansion reamers are handy tools that allow the user to keep working with the same reamer multiple times, without having to buy a new reamer. Since there is more work involved in manufcaturing expansion reamers, they are more expensive. However, this higher cost is offset by a longer life span. Using expansion reamers can cut down on the number of tools that will be needed because of the ability to expand the reamer multiple times for reuse.

Advantages of Expansion Reamers:

One of the primary advantages of expansion reamers is their ability to create highly precise holes with a high-quality finish. Expansion reamers can achieve tighter tolerances than many other types of cutting tools, which is especially important in industries where precise measurements are necessary for proper functioning of parts and components.

Another advantage of expansion reamers is their versatility. They can be used on a range of materials, including metals, plastics, and composites. This versatility makes them a valuable tool for a wide range of industrial applications.

Use Cases for Expansion Reamers: Expansion reamers are commonly used in industrial settings for manufacturing, fabrication, and repair work. Some specific use cases for expansion reamers include:

  • Enlarging holes in machine parts, such as gears, bearings, and engine blocks.
  • Finishing holes in pipes and tubing to ensure proper fit and function.
  • Creating precision holes in aerospace components, such as aircraft engines and turbines.

It's important to note that expansion reamers should be used with caution and proper technique to avoid damage or breakage. It's recommended to use a lubricant or coolant during the drilling process to prevent overheating and extend the life of the reamer.

In summary, expansion reamers offer several advantages for industrial drilling applications, including their ability to create highly precise holes with a high-quality finish and their versatility in working with a range of materials. Their use cases include enlarging holes in machine parts, finishing holes in pipes and tubing, and creating precision holes in aerospace components. With proper technique and care, expansion reamers can be a valuable tool for any industrial drilling project.

  • Decimal Equiv (D1) Size Flute Length (L2) OAL (L1) Morse Taper # of Flutes In Stock Sku Price Quantity
    0.3750 3/8 3/4 7 1 6 3
    $100.61
  • 0.3750 3/8 5/16 3/4 7 6 6
    $84.58
  • 0.4063 13/32 3/4 7 1 6 1
    $111.29
  • 0.4063 13/32 5/16 3/4 7 6 11
    $94.46
  • 0.4375 7/16 7/8 7 1 6 2
    $106.47
  • 0.4375 7/16 3/8 7/8 7 6 4
    $90.10
  • 0.4688 15/32 7/8 8 1 6 2
    $109.04
  • 0.4688 15/32 27/64 7/8 8 6 2
    $97.99
  • 0.5000 1/2 1 8 1 6 2
    $106.09
  • 0.5000 1/2 7/16 1 8 6 11
    $95.25
  • 0.5313 17/32 1 8 1 6 2
    $110.29
  • 0.5313 17/32 7/16 1 8 6 2
    $106.01
  • 0.5625 9/16 1-1/8 8 1 6 4
    $112.03
  • 0.5625 9/16 7/16 1-1/8 8 6 9
    $103.39
  • 0.5938 19/32 1-1/8 8 1 6 1
    $121.92
  • 0.5938 19/32 7/16 1-1/8 8 6 2
    $104.93
  • 0.6250 5/8 1-1/4 9 2 6 13
    $120.76
  • 0.6250 5/8 9/16 1-1/4 9 6 5
    $108.00
  • 0.6563 21/32 1-1/4 9 2 6 1
    $133.05
  • 0.6563 21/32 9/16 1-1/4 9 6 11
    $115.32
  • 0.6875 11/16 1-1/4 9 2 6 1
    $133.84
  • 0.6875 11/16 9/16 1-1/4 9 6 3
    $121.84
  • 0.7188 23/32 1-1/4 9 2 6 1
    $142.73
  • 0.7188 23/32 9/16 1-1/4 9 6 2
    $129.81
  • 0.7500 3/4 1-3/8 9-1/2 2 6 14
    $140.11
  • 0.7500 3/4 5/8 1-3/8 9-1/2 6 14
    $128.44
  • 0.7813 25/32 1-3/8 9-1/2 2 8 2
    $146.55
  • 0.7813 25/32 5/8 1-3/8 9-1/2 8 2
    $135.30
  • 0.8125 13/16 1-3/8 9-1/2 2 8 Call
    $148.71
  • 0.8125 13/16 5/8 1-3/8 9-1/2 8 7
    $147.43
  • 0.8438 27/32 1-3/8 9-1/2 2 8 1
    $165.12
  • 0.8438 27/32 5/8 1-3/8 9-1/2 8 1
    $147.97
  • 0.8750 7/8 1-1/2 10 2 8 6
    $163.46
  • 0.8750 7/8 3/4 1-1/2 10 8 7
    $150.62
  • 0.9063 29/32 1-1/2 10 2 8 1
    $180.57