Back reamer

In the world of engineering and manufacturing, precision is paramount. Whether drilling for a bolt, creating a precise fit for a bearing, or preparing a hole for a specific component, achieving the desired size and shape is essential. Enter the back reamer, a specialized tool that takes the precision of drilling a hole to the next level.

What is a Back Reamer?

A back reamer is a cutting tool designed to enlarge an existing drilled hole to a precise diameter. It’s essentially a long, cylindrical tool with cutting edges along its length. Unlike drills, which remove material by rotating and cutting into the work piece, back reamers are typically stationary while the workpiece is rotated or fed into the tool.

Key Features of a Back Reamer:

Flute design: The back reamer features multiple flutes (grooves) along its length that facilitate chip removal, ensuring a clean and efficient cutting process.
Tapered or straight shank: The shank, or the part that connects to the tool holder, can be either tapered or straight, depending on the specific application.
Cutting edges: The sharp cutting edges of the back reamer are precisely ground to achieve the desired hole diameter.
Back taper: Some back reamers feature a slight back taper to aid in the cutting process and facilitate chip removal.
How Back Reamers Work:

Preparation: The hole is first drilled to a slightly smaller diameter than the final desired size.
Insertion: The back reamer is inserted into the pre-drilled hole.
Rotation and Feeding: The workpiece is rotated or fed into the stationary reamer, allowing the cutting edges to enlarge the hole.
Chip Removal: The flutes in the reamer facilitate the removal of chips, preventing them from clogging the cutting edges and ensuring a smooth and accurate cut.