3 Piece Countersink Drill Bit, Hss Stainless Steel Metal (4-12/4-20/4-32Mm), High Speed Rubber Stopper

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3 Piece Countersink Drill Bit, Hss Stainless Steel Metal (4-12/4-20/4-32Mm), High Speed Rubber Stopper
3 Piece Countersink Drill Bit, Hss Stainless Steel Metal (4-12/4-20/4-32Mm), High Speed Rubber Stopper
3 Piece Countersink Drill Bit, Hss Stainless Steel Metal (4-12/4-20/4-32Mm), High Speed Rubber Stopper
3 Piece Countersink Drill Bit, Hss Stainless Steel Metal (4-12/4-20/4-32Mm), High Speed Rubber Stopper
3 Piece Countersink Drill Bit, Hss Stainless Steel Metal (4-12/4-20/4-32Mm), High Speed Rubber Stopper
3 Piece Countersink Drill Bit, Hss Stainless Steel Metal (4-12/4-20/4-32Mm), High Speed Rubber Stopper
3 Piece Countersink Drill Bit, Hss Stainless Steel Metal (4-12/4-20/4-32Mm), High Speed Rubber Stopper

PRODUCT PARAMETERS
Size: 4-12, 9 steps (Diameter 4, 5, 6, 7, 8, 9, 10, 11, 12mm) 4-20, 9 steps (diameter 4, 6, 8, 10, 12, 14, 16, 18, 20 mm) 4-32, 15 steps (diameter 4, 6, 8, 10, 12, 14, 16, 18, 20, 22 , 24, 26, 28, 30, 32mm)
Package: HSS Center Punch 1Pcs 5 Inch 3Pcs Spiral Drill Bits, 4-12/4-20/4-32mm 29Sizes, Steel high speed, main material, high quality step drill bits titanium coated.
Features: A variety of of drilling, reaming, chamfering, deburring and boring diameters.
Unique walking structure, one drill can open different opening sizes, from a drill to a drill. scale to scale a box drill.
Scope of application: automotive bodywork, repair and modification, bridge doors and windows, household appliances.
Can be used for the following equipment: hammer drill; hand, drill milling machine, machining center.
Titanium alloy coating reduces friction and is more durable than uncoated drill bits.
HSS (High Speed Steel ) has a longer lifespan.
Note: The speed of the drill at; hand is recommended to be 100-1000r/min.
The larger the drill bit diameter, the slower the required speed; the drill to hand is suitable for; the plate to less than 2mm.
Drill stainless steel 2-3mm, Please use drill operation, cooling and drilling is more durable