As the complexity of manufactured products intensifies, so does the need to create consistent, highly tolerant holes. Reamers are the perfect solution for enlarging or      finishing an existing hole to a specific size and tolerance.    
                            Type
                      Chucking Reamers
                          - Intended for use in drill presses, lathes and screw machines
- Most commonly used style for reaming holes to a tight tolerance
- Come in straight flute, RHS/RHC, LHS/LHC and expansion styles in standard and                jobber lengths
Hand Reamers
                          - Have a square at the end of the shank, similar to a hand tap. This allows the user                to turn the reamer with an adjustable wrench or a standard tap wrench
- Constructed with a tapered cutting head to help the user push the tool into                the workpiece
Shell Reamers
                          - Similar to the cutting portion of a chucking reamer
-  Supplied without a shank
-  A straight shank or taper shank arbor is used in conjunction with the shell                reamer, and is used as a complete cutting tool
Pipe Reamers
                          - Used to prepare a hole for tapping with a taper pipe tap
- Constructed with a square end on the shank. This allows the user to turn the                reamer with an adjustable wrench or a standard tap wrench
Expansion Reamers
                          - Built with an adjusting screw to alter the size of the cutting head. This allows an                expansion reamer to be reground many times
Bridge Reamers
                          - Designed to enlarge and align holes for rivets
- Primarily used in steel construction using I-beams
- Shanks come in a variety of styles for portable electric drills, drill presses and                square-drive impact wrench sockets
Repairman′s Reamers
                          - Built for the removal of burrs in pipe and conduit, and for enlarging holes in                sheet metal
           Material
                      High Speed Steel (HSS, M1, M2, M7, M50)
                          - Combines good tool life and productivity with minimal cost
- Works well in free cutting and carbon steels, as well as soft, non-ferrous                materials such as aluminum, brass, bronze and copper
Cobalt (M35, M42)
                          - Better wear resistance, higher hardness and toughness than HSS
- Very little chipping or micro chipping under severe cutting conditions, allowing                the tool to run 10% faster than HSS
- With the right point angle and helix, cobalt is the most cost-effective for                machining cast iron, heat-treated steels and titanium alloys
Solid Carbide
                          - For high-performance applications. Carbide can run faster and withstand higher                temperatures, while providing good wear resistance
-  Carbide is brittle and tends to chip when conditions are not ideal; heavy feed rates                are more suitable for HSS and cobalt tools
-  Used in abrasive and tough-to-machine materials: cast iron, non-ferrous alloys,                glass, plastics and composites
Carbide-Tipped
                          - Offers many of the advantages of solid carbide tooling at a reduced cost,                especially in larger diameter tools
                            Flute Styles
                                 Straight Flute
                          - The most common reamer
-  45° Chamfer angle to ease the reamer into the existing hole
- With straight flutes, chips are forced forward into the hole, and should be used inthrough-hole applications only
Right Hand Spiral/Right Hand Cut (RHS/RHC)
                          - Pull chips out of an existing hole
-  Ideal for blind-hole applications
-  Design adds extra shear to the finished hole
Left Hand Spiral/Right Hand Cut (LHS/RHC)
                          - Push chips forward and are ideal for through-hole applications
-  Design provides the finest hole finish
Taper Pin
                          - Have a taper of 1/4″ to the foot
-  Designed to ream holes into which standard taper pins will fit
Straight Flute and Left Hand Spiral Taper Pin
                          - Meant primarily for hand reaming
-  Best results are usually obtained if the hole to be reamed is drilled a fewthousandths smaller than the small diameter of the finish-reamed hole
Helical Taper Pin
                          - Designed especially for the shop producing taper-pin holes by machine reaming
- Due to the High-Spiral construction, chips do not pack in the flutes
                     Special Sizes
                                 Over/Under Reamers
                          - Come in sizes 1/1000th inches above or below standard key sizes.For example, an oversize reamer measuring 0.2510″ or undersize of0.2490″ are offered as alternatives to a 1/4″ or 0.2500″ reamer
- These sizes will allow the user to create a tighter or looser hole thanthe standard fractional size
Special Decimal Sizes
                          - Cover all sizes outside of the standard fractional, letter, wire and metric sizes
-  Manufactured in increments of 0.0010″
Dowel Pin Sizes
                          - Help the user prepare a perfect hole for dowel pin insertion
                                  | Machine Reaming | 
                                  | To 3/32" | .003"- .006" | 
                                  | 3/32" to 1/4" | .008"- .010" | 
                                  | 1/4" to 1/2" | .012"- .015" | 
                                  | 1/2" to 1" | .017"- .020" | 
                                    | 1" to 2" | .020"- .025" | 
                                    | >2" | .030"- .035" | 
                                    | Hand Reaming | 
                                    | All Sizes | .002"- .004" |