A reamer is a cylindrical or conical rotary cutting tool used to enlarge and finish holes, to a precise measurement and finish. There are two types of reamers, hand and machine called chucking reamers. All reamers have either straight or helical flutes where chips, cooling and lubricating fluid pass through. RedLine Tools offers a full line of carbide, HSS and cobalt reamers for all of your hole finishing applications. All RedLine Tools reamers are Proudly Made in the USA.


Straight Flute Carbide Reamers

Designed for use in CNC machines, screw machines, lathes and drill presses. Straight flute reamers are most commonly used where tight tolerances are needed. Carbide tools can run faster than HSS tools and withstand higher temperatures while providing excellent wear resistance for high-performance applications. Click the links for Information about speed & feed rates and total stock allowance.


Straight Flute HSS & Cobalt Reamers

Designed for use in low production applications. Provide good tool life with minimal cost. Work well with steels, soft non-ferrous materials and aluminum. Click the links for Information about speed & feed rates and total stock allowance.


Right Hand Spiral Reamers

These reamers provide a very fine and smooth finish. These can also be selected for blind holes as right the hand spiral will pull the chips up and out of the hole. Click the links for Information about speed & feed rates and total stock allowance.


Expansion Style Reamers

For use in resizing drilled or bored holes. Can retain the same diameter after being resharpened. Click the links for Information about speed & feed rates and total stock allowance.


Taper Pipe Reamers

Used to prepare a hole for tapping with a pipe tap. These reamers are constructed with a square end on the shank to be used with a standard tap wrench. These will reduce the workload for the tap keeping even material removal from the top to the bottom of the tapered hole. Click the links for Information about speed & feed rates and total stock allowance.


Taper Pin Reamers

Has a taper of ¼” to the foot. These reamers are designed to ream holes where standard taper pins would fit.Click the links for Information about speed & feed rates and total stock allowance.