Shaft diameter tolerance	D(0~+0.005) Dm5
Material hardness	powder high speed steel 64～67HRC Powder high speed steel 64～67HRC SKH51 61～64HRC
Coating treatment	HW None TiCN none
Substrate (None/WPC)	none WPC none
Spring reinforcement (yes/no)	No Yes none
Edge shape	A D E G R
B. Cutting edge length	L S

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Thick plate blanking punch