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Atlas

Atlas 1/8 Chucking Reamer Straight Shank Cobalt

Precision Cutting with Cobalt Chucking Reamers These 1/8" Chucking Reamers are designed for precision cutting and feature a straight shank, right-hand spiral, and right-hand cut. Made from cobalt, these reamers provide excellent durability and performance for a variety of applications. Specifica...

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*Price sourced from Amazon.com. Last updated:Jul 13, 2026.Price and availability are subject to change.

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Overview

Precision Cutting with Cobalt Chucking Reamers

These 1/8" Chucking Reamers are designed for precision cutting and feature a straight shank, right-hand spiral, and right-hand cut. Made from cobalt, these reamers provide excellent durability and performance for a variety of applications.

Specifications:

  • Diameter: 1/8 .1250"
  • Shank Diameter: .1190"
  • LOC: 7/8"
  • OAL: 3-1/2"
  • Flute Count: 4
  • Material: Cobalt
  • Type: Chucking Reamers
  • Cut: Right Hand Spiral - Right Hand Cut

Key Features

1/8 .1250 DIA. X .1190 SHK. DIA. X 7/8" LOC X 3-1/2" OAL -- 4 FLUTE - A53175

Chucking Reamers

Straight Shank - Right Hand Spiral - Righ Hand Cut

Cobalt

Specifications

Type
Chucking Reamer
Material
Cobalt
Shank Type
Straight Shank
Flutes
4 FLUTE
Diameter
1/8 .1250 DIA.
Shank Diameter
.1190 SHK. DIA.
Length of Cut (LOC)
7/8"
Overall Length (OAL)
3-1/2"
Spiral Hand
Right Hand Spiral
Cut Hand
Right Hand Cut
Part Number
A53175

Pros & Cons

👍 Pros

  • Made from Cobalt material, which typically offers increased hardness and heat resistance for extended tool life.
  • Features a straight shank, providing stable and reliable gripping in various chucking applications.
  • Designed with a right-hand spiral and right-hand cut, suitable for general-purpose machining and efficient chip evacuation.
  • The 4-flute design contributes to smoother cutting action and a finer finish in reaming operations.
  • Precision dimensions of 1/8" (.1250) diameter and .1190" shank diameter ensure accuracy for specific hole sizing.
  • The 3-1/2" overall length and 7/8" length of cut offer a good balance for reach and effective reaming depth.
  • Clearly specified with part number A53175, assisting with reordering and identification.

👎 Cons

  • The specific material composition (e.g., M42 Cobalt) is not detailed, which can affect performance characteristics.
  • A 4-flute design may sometimes offer less chip clearance than 6-flute reamers in certain materials.
  • The product is a single reamer, not a set, requiring individual purchases for different sizes.
  • Straight shank reamers may not be as versatile as those with Morse taper shanks for heavy-duty applications.
  • The listing does not specify suitable materials for reaming, leaving it to user discretion.

Frequently Asked Questions

This Atlas chucking reamer is made from Cobalt, known for its hardness and heat resistance.
It has a 1/8" (.1250) diameter, a .1190" shank diameter, a 7/8" length of cut, and a 3-1/2" overall length.
This reamer features a 4-flute design.
It has a right-hand spiral and is designed for a right-hand cut.
The Cobalt material and 4-flute design are robust, but suitability for specific heavy-duty applications depends on the workpiece material and machine conditions.

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