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Taper Shank Reamers - Free UK Delivery Over £25 - Buy Online | Zoro

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.

Metric.
Used to produce a close tolerance surface finish by enlarging pre-drilled holes to a finished size to allow the fitting of hardened and ground taper pins in the building of jigs, fixtures and dies. 
Manufactured to BS 328-4.

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.

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.

8.50MM HSS T/S Sp/Fl Machine Reamer

Used to produce a close tolerance surface finish by enlarging pre-drilled holes to a finished size to allow the fitting of hardened and ground taper pins in the building of jigs, fixtures and dies. 
Manufactured to BS 328-4

12.00X254MM O/A HSS T/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.

5/32" HSS T/S Sp/Fl Machine Reamer

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