Types and features of reamers

Reamer

Tool for finish machining of holes
A hand reamer is used by mounting it to a tap holder or a tap handle.

Features

• This is a tool for precision finishing of the inside surface of a hole made in metallic materials, according to dimensions.

	After reamer working	Hole made with a drill
Roundness

Reamer working

It is alteration of holes previously made with a drill, etc. to machine a finish with required dimension and precision. There are reamers mounted on a tap holder or a tap handle for manual repair of holes, and reamers mounted to machines.

Hand reamer

Features

• This improves the precision after a bolt hole has been drilled.
• Originally for manual finishing, they are also used for final finishing for machine use. When mounted on a machine, working at low-speed rotation is recommended.

Taper pin reamer

Features

• This is a reamer for use with finishing a hole into which a taper pin is inserted. A straight blade with a 1/50 taper is standard.

Machine reamer

Features

• This is a reamer for hole finishing that is widely used for machine work. There are many different sizes. The chamfer angle is approx. 45°.

Bridge reamer

Features

• This is a reamer for finishing, used to repair by matching or expanding variances in holes punched in steel plate using a pin or bar.

Main points!

• Please check the cutting diameter (mm) and the tolerance to match the hole diameter to be repaired.
• Check the shank diameter.
  • When machine-mounted…MT1, MT3, etc.
  • For manual work...Tap holder mount part diameter (mm)
• When machine-mounted, generally used on a drill press.

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