Data Sheet

Date: 18-11-2010

Adjustable Reamers

Adjustable reamers are suitable for accurately finishing previously drilled holes to an exact size. The 6

hardened steel blades sit in tapered keyways and expand as they are repositioned along the length of the reamer

body. Measuring across the blades along the Parallel Cutting Length (L3) with a micrometer checks

adjustment progress of the reamer. Screwed end caps finally clamp the blades in the required finish size

position.

Blade Hardness: HRC 62-66

Front End Pilot (L2):

Short parallel length (L2) aids reamer line up with the drilled hole during

cutting with the Tapered Lead

Taper Lead:

Gradually increases the size of the original hole to the size of the final

Parallel Cutting Length (L3)

Parallel Cutting Length (L3)

Finish cuts hole to required size

All dimensions in millimetres

Manufacturers

Code

Range Metric

Range Inch

L

L1

L2

L3

D

A/F

D02272

6.5-7.0

0.256 - 0.276

85

35

3

18

4.0

3.15

D02273

7.0-7.75

0.276 – 0.305

90

35

4

18

4.0

3.15

D02274

7.75-8.5

0.305 – 0.335

100

38

5

18

4.8

4.0

D02275

8.5-9.25

0.335 – 0.364

105

38

5

24

4.8

4.0

D02276

9.25-10.0

0.364 – 0.394

115

38

5

24

5.6

4.5

D02277

10.0-10.75

0.394 – 0.423

125

38

5

24

5.6

4.5

D02278

10.75-11.75

0.423 – 0.463

130

38

5

25

6.3

5.0

D02279

11.75-12.75

0.463 – 0.502

130

38

5

25

6.3

5.0

D02280

12.75-13.75

0.502 – 0.541

145

48

5

30

7.1

5.6

D02281

13.75-15.25

0.541 – 0.600

150

52

6

34

8.0

6.3

D02282

15.25-17.0

0.600 – 0.669

165

55

6

38

9.0

7.1

D02283

17.0-19.0

0.669 – 0.748

170

60

6

40

10.0

8.0

D02284

19.0-21.0

0.748 – 0.827

180

60

6

40

11.2

9.0

D02285

21.0-23.0

0.827 – 0.905

195

65

6

40

14.0

11.2