#4 X 4" Extra Long Combined Drill Bit and Countersink BoltsandNuts.com an alloy that offers toughness

an alloy that offers toughness

Size 1-3/4"

and test equipment and conditions • 90-Tooth Fixed Ratchet Head – The single half-moon pawl maintains 9 teeth engaged with the gear at all times

The jaws are made from 4140 chromium molybdenum steel

Part Number: 75F400HCS8Y

#4 X 4" Extra Long Combined Drill Bit and Countersink BoltsandNuts.com an alloy that offers toughnessProduct Description Plain type combined drills and countersinks are used to producing center hole in workpieces which require precision drilling or machining between centers. Size: 4 , Overall Length: 4" Brand Drill America Part Number DEW4X4 Size #4 Material High Speed Steel Finish Uncoated (Bright) Body Diameter 5 16" Shank Type Round Countersink Angle 60 Shank Size 5 16" Length 4" Number of Flutes 2 Size 1 8"