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  • American-made HSS drill bits with an M-2 hardness rating
  • Black anodized and are standard jobber length
  • Come in packages of 1 dozen
  • Used for sheet metal shops
  • (both of these numbered bits are used heavily in the aircraft industry)

 

 

Product ID:

1570 #21 HSS Jobber Bits - Dz 

1571 #30 HSS Jobber Bits - Dz  

HSS Jobber Drill Bits - Dz

SKU: 1570