Machine Reamers

Cutting Tools

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Reaming

Dormer

Series B101 HSS-E Taper Shank Machine Reamer - Metric 
HSS-E reamer for opening and finishing existing holes to H7 tolerance.
Suitable most ferrous and non-ferrous materials.
7° helix, Left Hand Slow Spiral for excellent surface finish.
Manufactured to BS328 standards.

Only to be used for through-hole machining.

Series B101 HSS-E Taper Shank Machine Reamer - Metric 

B101 4.00mm T/S MACHINE REAMER

Guhring

No. 496
Available in diameters ranging from 2mm to 12mm in increments of 0.01mm. Made from HSS-E steel with a bright finish, left hand spiral flute. 
For all ferrous and non-ferrous metals and hard and soft plastics. 
For use on CNC machines, producing high quality reamed holes. 
Manufactured to DIN 212 & DIN 2172 section 1.
Shank diameter = cutting diameter - 0.025mm.
ø2.00 ~ ø2.65/ø2.66 ~ ø10.00 H9.

Diameter Tolerances (to H7) 
Up to 5.5mm: + 0.004mm - 0.000mm 
Above 5.5mm: + 0.005mm - 0.000mm.

Code numbers are determined by the nominal diameter. Delete the decimal point; create a four figure number by preceding the figures with a zero, if required. All codes finish with the letter A, i.e. 3.60 becomes 0360A.

Straight Shank Machine Chucking Reamers

496 10.00mm CHUCKING REAMER MACHINE HSS-E INTERMEDIATE

Sherwood

Left hand spiral flute, right hand cutting. Manufactured to BS 328-4.

Metric Tolerances (to H7)
Diameter: ~ up to 3.00. Tolerance: High +0.008, Low -0.004.
Diameter: Over 3.00 ~ up to 6.00. Tolerance: High +0.010, Low -0.005.
Diameter: Over 6.00 ~ up to 10.00. Tolerance: High +0.012, Low -0.006.
Diameter: Over 10.00 ~ up to 18.00. Tolerance: High +0.015, Low -0.008.

Manufactured from durable high speed steel with a left hand spiral flute for right hand cutting applications. Manufactured to BS 328-4.

Features and Benefits
• HSS construction for increased durability 
• 6 flutes for increased chip control
• Suitable for right handed cutting applications

Notes
• Diameter: ~ up to 3.00. Tolerance: High +0.008, Low -0.004.
• Diameter: Over 3.00 ~ up to 6.00. Tolerance: High +0.010, Low -0.005.
• Diameter: Over 6.00 ~ up to 10.00. Tolerance: High +0.012, Low -0.006.
• Diameter: Over 10.00 ~ up to 18.00. Tolerance: High +0.015, Low -0.008.

Standards
• Manufactured to BS 328-4

Straight Shank Machine Reamers - Metric

2.00mm HSS S/S SP/FL MACHINE REAMER

9.00mm HSS S/S SP/FL MACHINE REAMER

12.00mm HSS S/S SP/FL MACHINE REAMER

Sherwood machine reamers are used to produce a close tolerance surface finish by enlarging pre-drilled holes to a finished size. Manufactured from HSS with a 45 bevelled head. Conform to BS 122 : Part 2 and BS 328 Part 4.

Inch Tolerances
Diameter: ~ up to 7/64”. Tolerance: +0.0003, -0.0001.
Diameter: Over  7/64” ~ up to 15/64”. Tolerance: +0.0004, -0.0002.
Diameter: Over  15/64” ~ up to 25/64”. Tolerance: +0.0005, -0.0002.
Diameter: Over  25/64 ~ up to 43/64”. Tolerance: +0.0006, -0.0003.
Diameter: Over  43/64 ~ up to 1 1/8”. Tolerance: +0.0007, -0.0004.
Diameter: Over  1 1/8” ~ up to 1 1/2”. Tolerance: +0.0008, -0.0004.
Diameter: Over  1 1/2” ~ up to 2”. Tolerance: +0.0010, -0.0005.

Sherwood machine reamers are used to produce a close tolerance surface finish by enlarging pre-drilled holes to a finished size. Manufactured from HSS with a 45 bevelled head. Conform to BS 122 : Part 2 and BS 328 Part 4.

INCH TOLERANCES:
Diameter: ~ up to 7/64". Tolerance: +0.0003, -0.0001.
Diameter: Over  7/64" ~ up to 15/64". Tolerance: +0.0004, -0.0002.
Diameter: Over  15/64" ~ up to 25/64". Tolerance: +0.0005, -0.0002.
Diameter: Over  25/64 ~ up to 43/64". Tolerance: +0.0006, -0.0003.
Diameter: Over  43/64 ~ up to 1 1/8". Tolerance: +0.0007, -0.0004.
Diameter: Over  1 1/8" ~ up to 1 1/2". Tolerance: +0.0008, -0.0004.
Diameter: Over  1 1/2" ~ up to 2". Tolerance: +0.0010, -0.0005.

HSS Taper Shank Machine Reamers - Inch

13/16" HSS T/S SP/FL MACHINE REAMER

Used to produce a close tolerance surface finish by enlarging pre-drilled holes to a finished size. Manufactured from HSS with a 45 bevelled head. Manufactured to BS 328-4.

Tolerances (to H7)
Diameter: ~ up to 3.00. Tolerance: +0.008, -0.007.
Diameter: Over 3.00 ~ up to 6.00. Tolerance: +0.010, -0.005.
Diameter: Over 6.00 ~ up to 10.00. Tolerance: +0.012, -0.006.
Diameter: Over 10.00 ~ up to 18.00. Tolerance: +0.015, -0.008.
Diameter: Over 18.00 ~ up to 30.00. Tolerance: +0.017, -0.009.
Diameter: Over 30.00 ~ up to 50.00. Tolerance: +0.021, -0.012.
Diameter: Over 50.00 ~ up to 80.00. Tolerance: +0.025, -0.014.
Diameter: Over 80.00 ~ up to 120.00. Tolerance: +0.029, -0.016.

Used to produce a close tolerance surface finish by enlarging pre-drilled holes to a finished size. Manufactured from HSS with a 45 bevelled head. Manufactured to BS 328-4.

TOLERANCES (to H7):
Diameter: ~ up to 3.00. Tolerance: +0.008, -0.007.
Diameter: Over 3.00 ~ up to 6.00. Tolerance: +0.010, -0.005.
Diameter: Over 6.00 ~ up to 10.00. Tolerance: +0.012, -0.006.
Diameter: Over 10.00 ~ up to 18.00. Tolerance: +0.015, -0.008.
Diameter: Over 18.00 ~ up to 30.00. Tolerance: +0.017, -0.009.
Diameter: Over 30.00 ~ up to 50.00. Tolerance: +0.021, -0.012.
Diameter: Over 50.00 ~ up to 80.00. Tolerance: +0.025, -0.014.
Diameter: Over 80.00 ~ up to 120.00. Tolerance: +0.029, -0.016.

HSS Taper Shank Machine Reamers - Metric

4.00mm HSS T/S SP/FL MACHINE REAMER

11.00mm HSS T/S SP/FL MACHINE REAMER

17.00mm HSS T/S SP/FL MACHINE REAMER

19.00mm HSS T/S SP/FL MACHINE REAMER

21.00mm HSS T/S SP/FL MACHINE REAMER

23.00mm HSS T/S SP/FL MACHINE REAMER

30.00mm HSS T/S SP/FL MACHINE REAMER

Manufactured to DIN 212.

Tolerances (to H7)
Diameter: ~ up to 5.50. Tolerance: +0.004, -0.000.
Diameter: Over 5.50 ~. Tolerance: +0.005, -0.000.

Cobalt Straight Shank Chucking Reamers

3.00mm HSS-COBALT S/S SP/FL CHUCKING REAMER

B101 3.00mm T/S MACHINE REAMER

B101 5.00mm HSS T/S M/C REAMER

B101 6.00mm T/S MACHINE REAMER

B101 8.00mm T/S MACHINE REAMER

B101 13.00mm T/S MACHINE REAMER

Series B161 HSS-E Taper Shank Chucking Reamer
Metric

Series B161 HSS-E Taper Shank Chucking Reamer - Metric

B161 5.00mm HSS-E MORSE TAPER CHUCKING REAMER DIN 208

B161 6.00mm HSS-E MORSE TAPER CHUCKING REAMER DIN 208

B161 10.00mm HSS-E MORSE TAPER CHUCKING REAMER DIN 208

Series B170 HSS-E Machine Chucking (Centesimal) Reamer

Centesimal Reamer by 0.01mm increments.
Left hand slow spiral, right hand cut.
For machine reaming of abrasive, hard ferrous, and 
non-ferrous materials


Series B170 HSS-E Machine Chucking (Centesimal) Reamer - Metric 

B170 4.01mm HSS-E MACHINE CHUCKING REAMER DIN 212

B170 5.00mm HSS-E S/S M/C CHUCKING REAMER

Series B901 HSS Straight Shank Machine Reamer - Inch 
Flute geometry 7º Left Hand Spiral.
Bevel Lead 45º a side.

Used for opening out and finishing existing holes to H7 tolerance in most ferrous and non-ferrous metals.

To obtain the best results when using reamers it is essential to make them 'work'. It is a common fault to prepare holes for reaming with too little stock left in. If insufficient stock is left in the hole before reaming then the reamer will rub quickly, show wear and will result in loss of diameter. It is equally important for performance not to leave too much stock in the hole.

HSS Spiral Flute straight shank machine reamer for opening and finishing existing holes to H7 tolerance.
Suitable for most ferrous and non-ferrous materials.
6° helix, left hand spiral for excellent surface finish.
Manufactured to BS328 standard.

Series B901 HSS Straight Shank Machine Reamer - Inch 

B901 5/32" S/S MACHINE REAMER

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Machine Reamers

Dormer

B101 4.00mm T/S MACHINE REAMER

28 Variations

Guhring

496 10.00mm CHUCKING REAMER MACHINE HSS-E INTERMEDIATE

1027 Variations

Sherwood

2.00mm HSS S/S SP/FL MACHINE REAMER

22 Variations

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13/16" HSS T/S SP/FL MACHINE REAMER

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11.00mm HSS T/S SP/FL MACHINE REAMER

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17.00mm HSS T/S SP/FL MACHINE REAMER

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19.00mm HSS T/S SP/FL MACHINE REAMER

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21.00mm HSS T/S SP/FL MACHINE REAMER

51 Variations

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23.00mm HSS T/S SP/FL MACHINE REAMER

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30.00mm HSS T/S SP/FL MACHINE REAMER

51 Variations

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3.00mm HSS-COBALT S/S SP/FL CHUCKING REAMER

20 Variations

Dormer

B101 3.00mm T/S MACHINE REAMER

28 Variations

Dormer

B101 5.00mm HSS T/S M/C REAMER

28 Variations

Dormer

B101 6.00mm T/S MACHINE REAMER

28 Variations

Dormer

B101 8.00mm T/S MACHINE REAMER

28 Variations

Dormer

B101 13.00mm T/S MACHINE REAMER

28 Variations

Dormer

B161 5.00mm HSS-E MORSE TAPER CHUCKING REAMER DIN 208

34 Variations

Dormer

B161 6.00mm HSS-E MORSE TAPER CHUCKING REAMER DIN 208

34 Variations

Dormer

B161 10.00mm HSS-E MORSE TAPER CHUCKING REAMER DIN 208

34 Variations

Dormer

B170 4.01mm HSS-E MACHINE CHUCKING REAMER DIN 212

81 Variations

Dormer

B170 5.00mm HSS-E S/S M/C CHUCKING REAMER

81 Variations

Dormer