Feature
●🔨【Double Spiral Flute】 Compared with the ordinary step drill, the cobalt step drill bit has a unique double cutting blade design. Even bring you the pleasure of cutting butter blocks.
●🔨【TiAIN Coating】The surface of the step drill bit set for metal heavy duty is coated with a layer of TiAIN, which can minimize the wear of the drill bit during each drilling process. The hardness of the 89HRC surface has also improved to a higher level, which can cut harder materials and greatly improve the cutting speed.
●🔨【M35 Cobalt Material】This is a M35 cobalt step drill. You will obviously feel that it is more solid than conventional titanium material, and it will also make you feel unprecedented smoothness in the drilling process. It will be more excellent than you think.
●🔨【15 Hole Sizes】The specification of the step drill is from 1/4 "-1-1/8": 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8", 15/16", 1", 1-1/16", 1-1/8". Each type of step drill contains a variety of specifications, which can meet your needs in a wider range. At the same time, you do not need to change the drill frequently, saving your precious time.
●🔨【90 day warranty period】 If you are not satisfied with the product during use, please contact us for 100% refund or replacement service.
[2 Flute-1 & 4 -1-3 & 8 ]
[4 Flute-1 & 4 -3 & 4 ]
[4 Flute-1 & 8 -1 & 2 ]
[3 & 16 -1-3 & 8 （M2）]
[4 Flute-1 & 4 -1-3 & 8 ]
[4 Flute-3 & 16 -7 & 8 ]
[2 Flute-3 & 16 -7 & 8 ]
[2 Flute-1 & 4 -3 & 4 ]
[2 Flute-1 & 8 -1 & 2 ]
[4 Flute-1 & 4 -1-1 & 8 ]
[2 Flute-1 & 8 -7 & 8 (3pcs)]
[4 Flute-1 & 8 -7 & 8 (3pcs)]
[2 Flute-1 & 4 -1-1 & 8 ]
Description
