13Pack 1.5-6.5mm HSS Twist Drill Bit Set Metric M35 Cobalt Steel High Speed Stee

Package includes:
13 x Twist Drill Bits
Speicifcations:
Material: 95%high speed Steel+5%cobalt
feature:professional,Durable,Domestic,For Wood, Plastic And Aluminum
Ideal For DIY, Home And General Building/Engineering Using
Model Number: 105379
length: 6cm ~ 11.7cm/2.36″” ~ 4.61″”(Approx.)
Use: Other
DIY Supplies: Electrical
Specification: 1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.2mm, 3.5mm, 4.0mm, 4.5mm, 4.8mm, 5.0mm, 5.5mm, 6.0mm, 6.5mm
Length: 6cm ~ 11.7cm/2.36″” ~ 4.61″”(Approx.)
Quantity: 1 set (13pcs)
1 x 1.5mm HSS Drilling Bit
1 x 2.0mm HSS Drilling Bit
1 x 2.5mm HSS Drilling Bit
1 x 3.0mm HSS Drilling Bit
1 x 3.2mm HSS Drilling Bit
1 x 3.5mm HSS Drilling Bit
1 x 4.0mm HSS Drilling Bit
1 x 4.5mm HSS Drilling Bit
1 x 4.8mm HSS Drilling Bit
1 x 5.0mm HSS Drilling Bit
1 x 5.5mm HSS Drilling Bit
1 x 6.0mm HSS Drilling Bit
1 x 6.5mm HSS Drilling Bit

[COBALT STEEL]Manufactured from M35 cobalt steel, with molybdenum and cobalt added to creates a hardened alloy, measuring Rockwell hardness up to 67, for much faster cutting and extra longer life span, with up to twelve times when compared with an average HSS drill bit.
[13pcs of Metric Twist Drill Bits]1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.2mm, 3.5mm, 4.0mm, 4.5mm, 4.8mm, 5.0mm, 5.5mm, 6.0mm, 6.5mm.Enough for daily use.
[SELF CENTERING]The 135°quick-cut pilot split points are self-centering and can penetrate quickly with less pressure. The bits will not “walk” or “wander”. Straight shank allows for firmly holding and accurate centering, fit for standard drill chucks and regular round collet chucks.
[METAL CUTTING]Drilling Steel, Stainless Steel, Hard Metal and Iron.Particularly successful in cutting through hard metals such as hard metal, stainless steel and cast iron, although they can be used for softer materials, too.
[FOR METALWORKING]Particularly successful in cutting through hard metals(hardness less than HRC38°) such as stainless steel and cast iron, although they can be used for softer materials like copper and aluminium, too. Not for hardened steel / high carbon steel. Try to adjust the RPM when it fails to penetrate.