F436 flat washers are manufactured from carbon steel to meet or exceed ASTM F436

High red hardness of cobalt permits speeds 30% greater than standard heavy duty split point (HSS) drills

17/64 Cobalt Heavy Duty Jobber Drill Bit

Ideal for applying trim

1/4 x 2 1/2 Round Split Drive Anchor Zinc Plated (100)

15/16 x 18 Ship Auger Wood Bit 1-8 Grade 5 Hex Cap Screws Zinc Plated F436 flat washers are manufactured15 16 x 18 Ship Auger Wood Bit . Ship Auger Wood Drill Bits are heat treated with machine ground hollows. Feature a single twist with a single cutter and side lip. Made of premium steel, imported from France, Ship Auger Wood Drill Bits are ideal for boring CCA and creosoted poles, railroad ties, bulkheads and other heavy timber.