Feature(may vary by option.)
●Set of 2: 0.16 - 0.57 inch (4 - 12 mm) (9 levels) (4, 5, 6, 7, 8, 9, 10, 11, 12). 4-20mm<9 Tier> (4,6,8,10,12,14,16,18,20) Includes a step drill storage case
●For Stainless Steel: An essential tool for drilling stainless steel, iron plate, aluminum plates, wood, vinyl, resin, etc., for household DIY, enlarging the lower hole, chamfering, deburring, etc. This is a daily item for home or work
●Industrial Grade TiAIN Coating: TiAIN titanium nitride coating increases surface hardness up to 89 degrees and can withstand loads in high-speed rotations. When drilling, the A1203 forms a hard protective layer to improve the drills high temperature and grinding resistance, making it ideal for high-speed drilling
●(HRC89 Hardness) HSS-Co M35 steel step drill has been treated with titanium nitride coating on the surface and HRC89. Outstanding sharpness than ordinary steel step drills. Abrasion resistant and heat resistant, reducing heat generated during friction
●Scope of application: High stability and long service life are noticed. The step drill enlarges the holes in order from small to large holes to allow for multiple sizes and enlargement of holes. In addition, the shape of the shaft is hexagonal shaft, so it can be used with impact drivers, electric drills, and charging drills
[Set of 3 (4-12mm | 22mm | 28mm)]
[4-32mm15 segments]
[4-22MM10 segments]
[4-12MM9 segments]
Description
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