Feature

●【KAKILFOB M35 Four-groove Step Drill】Compared to ordinary step drills and double and three special flute step drills, the cobalt step drill has a unique four special flute design that will make the entire cutting process smoother and it brings you the same pleasure as cutting a block of butter.
●【TiAIN Coating】TiAlN coating has excellent characteristics. As a new coating material, which can minimize the wear of the drill bit during each drilling process. It is extremely hard, can withstand high oxidation temperatures, and has excellent thermal hardness. In addition, it has strong adhesion, low coefficient of friction, and low thermal conductivity, making it ideal for demanding applications.
●【M35 Cobalt Material】M35 cobalt high-speed steel can be obtained by proper heat treatment with high hardness, high red hardness, and high wear resistance. It boasts higher toughness and bending strength than ordinary high-speed steel.
●【13 Step Size】 The specifications of step drills range from 1/8"-1/2": 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". Each type of step drill contains a variety of specifications, which can be wider to meet your needs, and you don’t need to replace drill bits frequently, saving you valuable time.
●【135° Cutting Angle】When drilling hard materials, the angle of the drill tip is important. That’s why we designed our drills with a 135° cutting angle. This angle reduces self-wear and provides a larger stress area, resulting in cleaner, more efficient drilling.


Description

KAKILFOB M35 Cobalt HSS Step Drill

Cobalt Step Drill BitCobalt Step Drill Bit

Four Spiral Flute Cobalt Step Drill Bit

M35 steel is a kind of high speed steel containing cobalt, which has the characteristics of high red hardness, high wear resistance and sintering resistance. M35 cobalt can obtain high hardness (HRC 64-66) through proper heat treatment.

135° cutting angle

step drill bitstep drill bit

135° cutting angle reduces self-wear and provides a larger stress area, resulting in cleaner, more efficient drilling.

Four Spiral Flute

step drill bit for metalstep drill bit for metal

Compared to ordinary step drills and double and three spiral flute step drills, the cobalt step drill has a unique four-spiral flute design that will make the entire cutting process smoother.

metal drill bitsmetal drill bits

Tip - Due to high-speed rotation, the temperature of the drill bit will increase. It is recommended to add cutting oil or water spray to cool the drill bit during continuous operation, which can effectively extend the service life of the step drill bit.