Walter 1-Inch HSS Car Reamer with 3-Flat Shank

The Ultimate Tool for Aligning Bolt Holes

Every welder and ironworker knows the frustration of bolt holes that just won't line up. Whether you are erecting structural steel, repairing a truck frame, or fitting heavy machinery parts, the Walter 1" Reamer (SKU: 01P100) is the solution you need in your tool bag. This isn't a delicate drill bit; it's a tough, British-made hole enlarger built to chew through metal and get your bolts to fit without a fight.

Built from top-quality High-Speed Steel (HSS), this reamer is designed to take a beating. It cuts clean and fast through steel, stainless steel, and aluminum without dulling prematurely. The tapered nose is a lifesaver when you are working with misaligned holes—it guides the tool in smoothly, allowing you to ream out the obstruction and create a perfectly round 1-inch hole in seconds. It’s perfect for deburring and enlarging punched or drilled holes that are just a little too tight for the fastener.

One of the biggest headaches with heavy-duty reaming is the bit spinning in the chuck when it bites into the metal. Walter solved this by grinding three flat sides onto the 1/2" shank. This "Tri-Flat" design locks securely into your drill's chuck jaws, preventing slippage entirely. This means all the power from your drill goes directly into the cut, giving you more control and safety on the job site. You won't have to stop to retighten your chuck every two minutes.

This tool is ideal for use with heavy-duty 1/2" drills. Whether you are working in the shop or out in the field, the Walter 01P100 Reamer helps you turn a two-man struggle into a one-man job. Stop fighting with drift pins and grinders—ream it out, drop the bolt in, and move on to the next weld. It is a must-have for any serious fabricator or maintenance pro looking to save time and frustration.