discount 70% in 2018-09-18 to 2018-09-20
price: USD$ 182.00
freight :USD$7.00,(Postal parcel)
Search Similar or mail to saler or send message to saler
Straight shank machine reamer with straight shank tungsten alloy integral spiral reamer 234567891011121314161820 precision H7, non-standard custom.
We need different standard lengths to contact us!
Direct production wholesale in factory. You can order, the fastest 3-5 days.
Small size blade is generally 4 blade, large size is generally 6 blades.
Performance: suitable for processing high hardness quenching products, suitable for processing of chilled cast iron and alloy heat-resistant alloy steel, precision machining can also be suitable for ordinary iron, high wear resistance, good strength.
The accuracy level of machine 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)
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