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Precision hand reamer H7 precision hand reamer 11121314151617181920

price:USD$47.00
discount 70% in 2018-10-19 to 2018-10-21
price: USD$ 32.90
freight :USD$18.00,(Express)
freight :USD$7.00,(Postal parcel)
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The accuracy level of hand reamer is: DD4H7H8H9

DD4 is the old standard, and H7H8H9 is the new standard.

The levels are: (high to low permutation) H7 > D > H8 > D4 > H9

Reamer tolerances are generally add size (commonly known as silk)

10 mm.

D class 10.01 mm

D4 class 10.02 mm

H7 class 10.005 - 10.01 mm

H8 class 10.01 - 10.015 mm

H9 class 10.02 mm