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Ordinary taper shank machine reamer H8 new standard M34 to 65 general 43 material customized non-standard custom-made new products

Execute GB1133-84/GB1133-73. common material: W4341

price:USD$280.00
discount 70% in 2018-09-25 to 2018-09-27
price: USD$ 196.00
freight :USD$18.00,(Express)
freight :USD$7.00,(Postal parcel)
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Common taper shank machine reamer

W4341 material

D old standard

D4 old standard

 D5 old standard

 H7  The new standard

H8 new standard

H9 new standard

 

Note: if necessary, pleaseContact sellerConfirmation postPurchase specifications. In order to prevent the pro pats goods, someThe reason of stock specifications. Please contact the pro and price.Modify the freight, modify the freight, modify the freightImportant things say3Times!! )

 

 

Accuracy of machine reamer:D/D4 /H7/H8/H9

 

D/D4Class isOld standard accuracy

 

 

H7/H8/H9yesNew standard precision

 

Reamer tolerances are generally increased in size (commonly known as silk)

Grade D increases 0.01 mm.D4Increase 0.02 mm

H7Increase 0.005 - 0.01 mm

H8Increase 0.001 - 0.015 millimeters

H9Enlarge0.02 mm.The blade is H long than D prefect