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13Pcs Cobalt Steel Twist Drill Bits Set, M35 Metal Drill Bit for Steel, Cast Iron, Copper, Stainless Steel, Aluminum, Wood, Plas

$24.00

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SKU: OFH2521 Category:

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Description

Brand Name: JaneDream

DIY Supplies: Woodworking

Type: Center Drill Bit

length: 1.5/2/2.5/3/3.2/3.5/4/4.5/4.8/5/5.5/6/6.5mm

Use: Wood Drilling

Model Number: 307920

is_customized: Yes

Material: High Speed Steel

















Features:
 

13 Sizes Steel Drill Bits Set: The set includes 13pcs of M35 cobalt steel twist drill bits: 1.5mm, 2mm, 2.5mm, 3mm, 3.2mm, 3.5mm, 4mm, 4.5mm, 4.8mm, 5mm, 5.5mm, 6mm, 6.5mm, fits the majority of power drill currently on the market and come with a portable plastic bag for easy storage and organization.
M35 Cobalt Steel: These drill bits also contain 5% Cobalt, which increases wear-resistance and durability for much faster cutting and extra longer life span.
For Metalworking: Perfectly suitable for cutting stainless steel, die steel, aluminum alloy, cast iron, copper, galvanized pipe, plastic, wood or other softer/hard metals. × Not for glass, ceramic, high carbon steel, heat-treated steel or hardened steel.
Twist Drill Bit Body: Fully Ground spiral groove design clears particles quickly, decreases friction and heat for a faster and cooler drilling performance.
135° Split Point: 135° Quick-Cut Point with straight shank prevents ””walk”” or ””wander”” and makes drilling precise with less pressure. Fit for standard drill chucks and regular round collet chucks.
Material: cobalt steel
Features: high hardness, wear resistance, accurate positioning, good chip removal, high efficiency
Application: stainless steel, die steel, aluminum alloy, cast iron, copper, galvanized pipe and other softer/hard metals
Not Application: glass, ceramic, high carbon steel, heat-treated steel, hardened steel etc.
 
Specification:
 1.5mm, 2mm, 2.5mm, 3mm, 3.2mm, 3.5mm, 4mm, 4.5mm, 4.8mm, 5mm, 5.5mm, 6mm,6.5mm
 
Specification: 1.5mm
Total Length: 40mm
Working Length: 18mm
Diameter: 1.5mm
 
Specification: 2mm
Total Length: 49mm
Working Length: 24mm
Diameter: 2mm
 
Specification: 2.5mm
Total Length: 57mm
Working Length: 30mm
Diameter: 2.5mm
 
Specification: 3mm
Total Length: 61mm
Working Length: 33mm
Diameter: 3mm
 
Specification: 3.2mm
Total Length: 65mm
Working Length: 35mm
Diameter: 3.2mm
 
Specification: 3.5mm
Total Length: 70mm
Working Length: 39mm
Diameter: 3.5mm
 
Specification: 4mm
Total Length: 75mm
Working Length: 43mm
Diameter: 4mm
 
Specification: 4.5mm
Total Length: 80mm
Working Length: 47mm
Diameter: 4.5mm
 
Specification: 4.8mm
Total Length: 85mm
Working Length: 51mm
Diameter: 4.8mm
 
Specification: 5mm
Total Length: 85mm
Working Length: 51mm
Diameter: 5mm
 
Specification: 5.5mm
Total Length: 93mm
Working Length: 57mm
Diameter: 5.5mm
 
Specification: 6mm
Total Length: 93mm
Working Length: 57mm
Diameter: 6mm
 
Specification: 6.5mm
Total Length: 100mm
Working Length: 63mm
Diameter: 6.5mm
 
Warm Tips:
1. You shouldn’t drill deeper than 1/2 of the drill bit’s fluting length to have the best drilling performance.
2. Don’t use these bits on hardened steel, high carbon steel and heat treated steel.
3. Please keep the drill bit vertical with the surface of object to be drilled. And Ensure the stability of the drill and the workpiece, tilted bit is prone to break.
4. Pay attention to the power of the charging drill.  Too low power may make it impossible to drill.
5. Drilling metal requires low RPM, it’s recommended to use a device of which the drilling speed below 1000RPM.
6. To avoid breaking, thick metals are recommended to be drilled with drill press, which is more stable, and adjustable.
7. Friction will accumulate heat between bits and work piece. Please be aware of the heat, add water or coolant during drilling to keep the bit cool if necessary.

 

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