Accusize Industrial Tools 29 Pc Set 1/16 to 1/2 inch by 1/64 in HSS M2 Premium Chucking Reamers, Straight Flute, Aluminum Case, 5528-SF00

• 29 PC Set: 1/16'' through 1/2'' By 64ths, Fractional size; Tolerance: +0.0002" - 0.0000"
• Made from premium M2 H.S.S. Chucking reamers are designed for accurate reaming in most materials using all types of equipment including screw machines, turret lathes, drill presses, and machining centers
• They are regularly pointed with a 45°chamfer. The straight-flute design is recommended for most general-purpose reaming
• Thru 1/2" diameter +.0002" -.0000". Above 1/2" to 5/8" +.0003" -.0000". Above 5/8" to 1-1/2" +.0001" -.0004
• Straight Flute, Right-Hand Cut; Straight Shank; High Speed Steel

As hole finishing tool, reamers are expected to help achieve desired tolerance that drill bits cannot do. Even though the intensity of the reaming process is mild, the required rigid setup and high volume of work are challenges that have to be confronted. To continuously provide steady quality surface during hole finishing, each single reamer from this premium reamer set was fully ground from single piece material, which makes each reamer less fragile than milled tools. Top M2 grade high speed steel further ensures fairly long using life.

Specifications

Reaming is normally performed under a low speed manner and most of time is conducted on existing holes so that bearing higher speed machining and shock resistance (high impact load) are normally not taken into consideration when making reamers. But meanwhile, neglecting high speed performance also means giving up all advantages that high performance H.S.S. attains.

M2 grade high speed steel is the most widely used material in tool making for its superiorities. With higher wear resistance, anti-bending strength, toughness, and thermo-plasticity, M2 grade high speed steel makes 5528-SF00 a better option for hole machining.

• High wear resistance: the reamers will less likely wear off during machining process and have longer cycle. Therefore, the quality of the work remains constant.
• Anti-bending strength and toughness: the reamers will only take minor impact from each use. Both outside shape and inside structure are not likely to change.
• Toughness: high toughness significantly shrinks machining duration, making the work more efficient.
• Thermo-plasticity: although under a low cutting speed, the friction between the cutting tool and work piece generates heat. Non-thermo-plasticity materials may subject to permanent hardness decrease. But M2 H.S.S. can effectively resist this type of harm and continuously serve as new tools.