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Shanghai non-standard straight shank machine reamer

discount 70% in 2018-09-19 to 2018-09-21
price: USD$ 8.26
freight :USD$18.00,(Express)
freight :USD$7.00,(Postal parcel)
Minimum Order Quantity:2
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The cutter body is made of high speed steel W43Material description: W4Mo3Cr4VSi (high speed steel, economical low alloy high speed tool steel, high-speed steel and general has quite high hardness, high temperature hardness, strength, toughness and wear resistance, the annealing hardness is less than or equal to 255HB. All kinds of knives made of W4Mo3Cr4VSi steel with approximate and general high speed steel has excellent cutting performance, can replace the common high speed steel cutter blade, drill, reamer, planer, machinery blade making machine, milling machine, can also be used for mechanical parts and requirements for heat resistant tap. )

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)

Example: 10 mm reamer

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

The blade is H long than D times a prefect