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12 Piece Bright HSS Twist Refill Set
Lightweight blades maximize the use of chargeable impact drivers by using a reduced motor and operation load
Close tolerance drilling without runout
Heavy duty stainless steel and zinc alloy construction
Diamond blades do not cut
Saber HSS-Co5 (Cobalt) TiN Coated Triple Flute Round Shank 90 Deg. Countersink Set 12 Piece Bright HSS TwistSaber HSS Co5 (Cobalt) TiN Coated Triple Flute Round Shank 90 Deg. Countersink Set For countersinking and deburring in a wide range of materials including ferrous and non ferrous metals The three fluted countersink is self centering with wide flutes and is used to provide a heavy chamfer in the entrance to a drilled hole. This may be required to allow the correct seating for a countersunk head screw or to provide the lead in for a second machining