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What is a Jamb Saw?

Published in Power Tools 2 mins read

A jamb saw, also often referred to as a jam saw, is a specialized power tool designed specifically for cutting door jambs, trim, and molding. This cutting is typically performed during floor installation to allow the new flooring material to fit neatly underneath the existing door frame and baseboards.

Understanding the Jamb Saw

Based on the provided reference for the ROBERTSĀ® Longneck Plus 6 in. Jamb Saw, these tools are built for demanding tasks. They feature:

  • Powerful Motor: An industrial-grade motor, like the 1100 watt example mentioned, provides the necessary power to cut through wood and other materials commonly used in door jambs and trim.
  • High Speed: A high RPM (revolutions per minute), such as 7500 RPM, ensures clean and efficient cutting.
  • Specific Design: The design is tailored to cut parallel to the floor surface, making it easy to undercut jambs and molding precisely to the height of the new flooring.

Key Features & Use Cases

Jamb saws are essential tools for flooring professionals and serious DIYers undertaking floor installation projects. Their primary function is to create space for the new flooring by undercutting existing architectural elements.

Here's a breakdown of their typical use:

  1. Undercutting Door Jambs: Cutting the bottom portion of door frames so that flooring can slide underneath, ensuring a seamless transition.
  2. Cutting Trim and Molding: Similarly, undercutting baseboards or other trim pieces to tuck the flooring beneath them.
  3. Floor Types: Used for various flooring types, including hardwood, laminate, and tile, where a clean undercut is required.

Technical Specifications Example (Based on Reference)

While specifications vary between models, the reference provides an example of a powerful jamb saw:

Feature Specification Example
Motor Type Industrial Grade
Power Output 1100 watts
Motor Speed 7500 RPM
Primary Cuts Door Jambs, Trim, Molding
Application New Floor Installation

Jamb saws provide a more accurate and less labor-intensive method for performing these cuts compared to manual alternatives, leading to a more professional finish for floor installations.

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