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		Reaming - Course: Techniques for machining of material. Trainees' handbook of lessons (Institut für Berufliche Entwicklung, 21 p.)
			(introduction...)
			1. Purpose of reaming
			2. Design and types of reamers
			3. Preparation for reaming
			4. Reaming with solid reamer
			5. Reaming with floating reamer
			6. Reaming of taper holes
			Table 1 - Recommended values for machining allowances
			Table 2 - Usual kinds of fits

Table 1 - Recommended values for machining allowances

Final size in mm

Machining allowance (reaming allowance) in mm

less than 5

0.1 - 0.2

5 to 20

0.2 - 0.3

21 to 32

0.3

33 to 50

0.5

51 to 70

0.8

71 to 120

1.0 - 1.2

121 to 150

1.3 - 1.5

Final size in mm	Machining allowance (reaming allowance) in mm
less than 5	0.1 - 0.2
5 to 20	0.2 - 0.3
21 to 32	0.3
33 to 50	0.5
51 to 70	0.8
71 to 120	1.0 - 1.2
121 to 150	1.3 - 1.5