Step Drill Bit Set & Automatic Center Punch 5pcs HSS Cobalt Titanium Step Drill Bit Set, Multiple Hole 50 Sizes High Speed Step Drill Bit Set with Aluminum Case
$22.99
$22.99
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50 SIZES IN 5 PIECES STEP DRILL BITS: The bits set includes five standard step drill bits that can replace 50 individual drill bits and process 50 different kinds of diameter holes, compatibility with 1/4, 3/8 and 1/2 in. chuck sizes.
135 DEGREE SPLIT POINT AND TWO-FLUTE DESIGN:The drill bit point is designed as X-shape with 135 degree, which can prevent the drill slipping while working in high speed. With two-flute design, provides a faster and smoother cutting.
TITANIUM COATING: The Titanium coating resists the drill bits from corrosion and rust, deduces friction making it easily to do multiple drills on surfaces such as plastic, aluminum, copper, stainless steel, and other types of sheet metal.
HIGH QUALITY AND WIDELY USE: The step drill bits are make by high speed steel, strong and durable can used for stainless steel sheet, aluminum alloy, plastic material and wood.
AUTOMATIC CENTER PUNCH & ALUMINUM CASE: The center punch help you mark the center point that you want to drill, with exquisite aluminum case protects the drill bits not easy to dull and prolongs the drills lifespan.
135 DEGREE SPLIT POINT AND TWO-FLUTE DESIGN:The drill bit point is designed as X-shape with 135 degree, which can prevent the drill slipping while working in high speed. With two-flute design, provides a faster and smoother cutting.
TITANIUM COATING: The Titanium coating resists the drill bits from corrosion and rust, deduces friction making it easily to do multiple drills on surfaces such as plastic, aluminum, copper, stainless steel, and other types of sheet metal.
HIGH QUALITY AND WIDELY USE: The step drill bits are make by high speed steel, strong and durable can used for stainless steel sheet, aluminum alloy, plastic material and wood.
AUTOMATIC CENTER PUNCH & ALUMINUM CASE: The center punch help you mark the center point that you want to drill, with exquisite aluminum case protects the drill bits not easy to dull and prolongs the drills lifespan.
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Powerextra is specialized in manufacturing power tool batteries and hand-tools. Our products are made with the highest quality materials and focus on providing high quality power products.
Product made by HSS material+ titanium coating
HSS( High speed steel ) is an alloy steel that composed of several kinds of carbide. It can withstand higher temperatures without losing its hardness and toughness, this property allows HSS to cut faster than high carbon steel.
Titanium coating can protect the drills in the high speed cutting process, prolong the product life.
X-shape cutting blades design enables a faster and smoother cutting.
Automatic Center Punch mark the hole locations and starts drill bits and screws, preventing wandering.
Exquisite Aluminum Case protects the drill bits not easy to dull and take the drills to anywhere more easily.
Size:
3/16''-7/8''Steps(3/16'',1/4'',5/16'',3/8'',7/16'',1/2'',9/16'',5/8'',11/16'',3/4'',13/16'',7/8'')
1/8''-1/2''Steps(1/8'',5/32'',3/16'',7/32'',1/4'',9/32'',5/16'',11/32'',3/8'',13/32'',7/16'',15/32'',1/2'')
1/4''-1-3/8''Steps(1/4'',3/8'',1/2'',5/8'',3/4'',7/8'',1'',1-1/8'',1-1/4'',1-3/8'')
1/4''-3/4''Steps(1/4'',5/16'',3/8'',7/16'',1/2'',9/16'',5/8'',11/16'',3/4'')
3/16''-1/2'' Steps (3/16'',1/4'',5/16'',3/8'',7/16'',1/2'')
Note:
It's recommended that adding water to cool the drill bit before use.
It suits for most steel sheets, aluminum sheets, copper / plastic / wood board, did not work for porcelain, ceramic, cultured marble, natural stone or concrete of any sort.
Package included:
5 x Step Drill Bits
1 x Automatic Center Punch
1 x Aluminum Case