Feature(may vary by option.)

●【SIZE】Cutting Dia.: 7/16", Square shank side:9mm/0.35"; Tool flute length: 72mm/2.83"; Overall length: 130mm/5.12".Package include 1 piece.
●【MATERIAL】Made by 9Crsi alloy tool steel, Hard and durable，reaches H8 level of drilling accuracy, reduces surface roughness of workpieces.
●【CHAMFERED ANGLE DESIGN】Chamfered Angle in the bottem provide orienting effects, ensure axis position and roundness.
●【FEATURE】: Reamer can be hand operated by use of wrenches and used for light cut, repair work, removing stock or simply for enlarging holes.
●【APPLICATION】Designed for accurate reaming in aluminum, cast iron, copper, magnesium alloy, plastic etc.

[3  & 4 inch]





Description

aa

Notes on Use

  • Appropriately reducing the cutting speed and feed speed can prolong the service life of the reamer;
  • When working, it is necessary to add cutting fluid to protect the cutting edge to make the cutting smoother;
  • When the oxide film or other hardened layer remains on the surface of the workpiece, it can be removed by reverse milling.

11

22

33

Feature<1>

  • It adopts a suitable negative rake angle design, which is effective in anti-vibration and has good guiding performance.
  • The use of large core diameter enhances the rigidity of the tool to make cutting and chip removal stable.

Feature<2>

  • The shank is finely ground and chamfered, with a high horizontal reference.
  • Efficient clamping and high concentricity provide high accuracy for product processing.

Feature<3>

  • Wide chip flute, H7 high precision
  • Smooth inner surface, Smooth chip removal without residue
a+a+

Explanation of Reaming Allowance

  • In order to improve its dimensional accuracy and hole surface quality, reasonable reaming can effectively improve the hole accuracy and surface quality.
  • Generally, the reaming allowance is 0.1-0.25mm (one side). For larger diameter holes, the reaming allowance should be increased appropriately, but the allowance should not be greater than 0.3mm.
  • There is an experience that suggests to reserve a thickness of 1-3% of the reamer diameter as the reaming allowance (diameter value). For example, it is more appropriate to add a Φ20 reamer with a hole diameter of about Φ19.6: 20－(20×2/ 100)=19.6
  • Reaming allowances are usually made smaller for hard materials and some aerospace materials.

1 5 3 10 6
5.5mm 5/8 inch 3/4 inch 10mm 7mm
PIECE 1 1 1 1 2

Looking for specific info?

Product information