DIY Supplies: Woodworking
Type: Center Drill Bit
Hign-concerned Chemical: None
Origin: Mainland China
Certification: none
Type: Core Drill Bit
DIY Supplies: Metalworking
Material: High Speed Steel 4241
Use: Metal Drilling
Features: Reaming/drilling/chamfering/deburring
Features:Â
Material: HSS / High Speed Steel  4241
Hexa-Flatted Shank:Â fits into power tools chuck securely and eliminates slip.
Surface Treatment:Â Titanium coated. Classic high speed steel with titanium coating for proven capability and durability in drilling holes in plastic, aluminum, copper, stainless steel and many other types of sheet metal.
Easy Drilling:Â Two-fluted design provides faster, smoother cutting;Provided with small pressure and the sets can cut through wood, sheet metal, steel and other surfaces.
Ideal For DIY:Â Tiny Home and General Building / Engineering Using(Without the use of center punch, easy to break, a step drill specifications apply.)
Features:Â
5 piece step drill bits set replaces 50 individual drill bits which saves you a lot of trouble and space,Two-flute design gives you faster, smoother cutting. Large bit has 3-sided shank and small bits have hex shank to prevent slip in drill chuck
1. This is a new type of HSS 4241 steel large step taper drill cobalt coated to reduce friction and run cooler
2. Cobalt steel with titanium coating ensures the bits have exceptional durability and will stay sharp for many years.
3. It is very suitable for cutting holes in various materials, including carbon steel, brass, wood, plastic, etc.
4.The bits come supplied in an organized aluminum case for easy storage and transport.
5This set is a must-have for HVAC professionals and DIY enthusiasts.
-------------------------------------------------------------------------------------------Â
Notice:Â
1. For the operation of hand drill (above 550W), the thickness is 1-2mm, and the hole diameter is greater than 14mm, a bench drill is required. (It is recommended to drill the workpiece with a stainless steel hardness below 25 degrees)
2. During drilling operation, water is injected while drilling to cool down, which effectively prolongs the service life of the drill. (Recommended speed 250~400)
Type: Center Drill Bit
Hign-concerned Chemical: None
Origin: Mainland China
Certification: none
Type: Core Drill Bit
DIY Supplies: Metalworking
Material: High Speed Steel 4241
Use: Metal Drilling
Features: Reaming/drilling/chamfering/deburring
HSS 4241 Cobalt Multiple Hole 50 Sizes Step Drill Bit Set Tools Aluminum Metal Drilling Tool for Metal Wood Step Cone Drill
Â
Features:Â
Material: HSS / High Speed Steel  4241
Hexa-Flatted Shank:Â fits into power tools chuck securely and eliminates slip.
Surface Treatment:Â Titanium coated. Classic high speed steel with titanium coating for proven capability and durability in drilling holes in plastic, aluminum, copper, stainless steel and many other types of sheet metal.
Easy Drilling:Â Two-fluted design provides faster, smoother cutting;Provided with small pressure and the sets can cut through wood, sheet metal, steel and other surfaces.
Ideal For DIY:Â Tiny Home and General Building / Engineering Using(Without the use of center punch, easy to break, a step drill specifications apply.)
Features:Â
5 piece step drill bits set replaces 50 individual drill bits which saves you a lot of trouble and space,Two-flute design gives you faster, smoother cutting. Large bit has 3-sided shank and small bits have hex shank to prevent slip in drill chuck
1. This is a new type of HSS 4241 steel large step taper drill cobalt coated to reduce friction and run cooler
2. Cobalt steel with titanium coating ensures the bits have exceptional durability and will stay sharp for many years.
3. It is very suitable for cutting holes in various materials, including carbon steel, brass, wood, plastic, etc.
4.The bits come supplied in an organized aluminum case for easy storage and transport.
5This set is a must-have for HVAC professionals and DIY enthusiasts.
-------------------------------------------------------------------------------------------Â
Notice:Â
1. For the operation of hand drill (above 550W), the thickness is 1-2mm, and the hole diameter is greater than 14mm, a bench drill is required. (It is recommended to drill the workpiece with a stainless steel hardness below 25 degrees)
2. During drilling operation, water is injected while drilling to cool down, which effectively prolongs the service life of the drill. (Recommended speed 250~400)
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