| Reaming is a recognised method of producing dimensionally accurate holes of fine surface finish. Dormer Tools produce a range of reamers to produce holes to H7 tolerance.
Reamers are classified into various types:
- Solid - available in two shank types, Straight (cylindrical) and Morse Taper.
- Shell - for use on arbors.
- Expanding - with adjustable HSS blades and used for light work.
The most common types of reamers have a left-hand spiral because the main applications involve through holes requiring chips to be pushed forward. For blind holes, reamers with straight flutes or right hand spirals are recommended.
The most efficient reaming conditions depend on the application, material, quality of hole required, stock removal, lubrication and other factors. A general guide to surface speeds and feeds for machine reamer is shown in the reamer AMG chart and stock removal tables.
Example: When reaming plain carbon steel (AMG 1.3), a B101 Morse Taper Shank machine reamer is recommended. The surface speed is 10-12 metres/minute, while C indicates the feed range (see reamer feed chart).
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