HYECHO 6 Pieces Metal Step Drill Bit 53 Sizes 4 12mm/3 13mm/4 20mm/5 35mm/4 32mm, Pro HSS Titanium Coating Taper

【HIGH QUALITY, SHARP AND DURABLE】:Metal step drill made of professional HSS 4241 with rich titanium coating on the outside, with professional X-shaped drill bits and straight double groove design, while they are fast cutting, more uniform handling and chip removal provide cooling! High speed steel and titanium coating together ensure durability and sharpness of the drill, which reduces friction and increases the service life. [Elaborately processed, beautiful and portable] Meet a variety of requirements, you can process holes with different diameters, so you have a lot of time. Suitable for countersunk holes in metal/wood/plastic Ideal for DIY and general construction/engineering Effective non-slip, precise drilling: 118 degree head cone angle, better wear resistance. The double-edged design provides a smoother cut and allows easier removal of cutting material for a cleaner drilling job. Easy to use - Comes with grains: The drill can be used to punch holes in smooth materials before drilling to prevent the drill from slipping during drilling; the kit comes with an aluminium storage box for easy storage and organisation without worrying about falling off or lost. 【Specifications for step drill pitch】Diameter 4-32, 5-35, 4-20, 3-13, 4-12. Shaft type: triangular shank head taper angle: 118°. Material: 4241 HSS Surface Treatment: Titanium Coating Packaging: Aluminium Box Size: 0.155 x 0.13 x 0.04 m Weight: 0.6 kg, Manufacturer: HYECHO