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Feature

HSS Drill Bit Set For Stainless Steel, Steel, Copper, Iron, Aluminum, Wood And Plastic
Steel extends cutting edge life and maintains cutting life after resharpening.
Ideal For DIY, Home, General Building / Engineering, Industrial Tool Using.
Containing Sizes 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.2mm, 3.5mm, 4.0mm, 4.2mm, 5.0mm, 5.2mm, 6.0mm, 6.5mm, 8.0mm, 8.5mm, 10mm.
To enhance the surface hardness of the drill to improve machining accuracy and improve the quality of the surface of the drill to reduce the friction coefficient with the workpiece processing, titanium and improve temperature resistance and wear resistance, thereby increasing the processing speed for high-speed processing

Description

Different types of drill bits are used to cut holes in different types of materials.
This set of Migiwata M35 cobalt steel drill bits are particularly successful in cutting through hard metals such as stainless steel and cast iron, although they can be used for softer materials, too.

Cobalt drill bits are not made of pure cobalt, but rather a steel alloy with certain percent cobalt. The 5-percent alloy is known as M35 grade.
The cobalt increases the strength of the steel and makes it more heat-resistant; this is an important factor in drilling hard materials because the friction of metal against metal can produce high temperatures that damage the material or the drill bit.

Tests shows that the M35 cobalt steel drill bits can penetrate a 5mm-thick 304 stainless steel plate in 5 seconds.

Cobalt drill bits are more expensive than other drill bits, but if you regularly drill through metal, they are a good investment since they tend to last longer.

Notice: The working life of the drill bits can be largely prolonged by using with cooling liquid. The bits are not suitable for hardened steel.

Features:
HSS Drill Bit Set For Stainless Steel, Steel, Copper, Iron, Aluminum, Wood And Plastic
Ideal For DIY, Home and General Building/Engineering Using
High speed steel, Durable.

Specification:
Material: M35 High Speed Steel
Containing sizes: 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.2mm, 3.5mm, 4.0mm, 4.2mm, 5.0mm, 5.2mm, 6.0mm, 6.5mm, 8.0mm, 8.5mm, 10mm.

Package included:
1 x 1.0mm HSS Drills
1 x 1.5mm HSS Drills
1 x 2.0mm HSS Drills
1 x 2.5mm HSS Drills
1 x 3.0mm HSS Drills
1 x 3.2mm HSS Drills
1 x 3.5mm HSS Drills
1 x 4.0mm HSS Drills
1 x 4.2mm HSS Drills
1 x 5.0mm HSS Drills
1 x 5.2mm HSS Drills
1 x 6.0mm HSS Drills
1 x 6.5mm HSS Drills
1 x 8.0mm HSS Drills
1 x 8.5mm HSS Drills
1 x 10.0mm HSS Drills