RZJZGZ 3 Pcs Straight Grooved Step Drill Bit Set, High Step Steel Titanium Drill Bits Set Power Tools 4-12/4-20/4-32mm Hex Shank Drive, HSS Cut Tool Set for Metal Wood Steel DIY Plastic

• 1. Made from high quality HSS steel, ideal for using to cut holes in a variety of materials including steel, brass, wood, plastic, etc.
• 2. 6 sided shanks design in order to prevent slippage when in chuck. Two flute design drives faster, smoother and cleaner cuts each step is clearly labeled with the depth diameter in steps.
• 3. 3pcs/set Hss Drill Bit Set, quality tool for jobs of all sizes, hex shank work with most drill or drills with 1/4" chuck , fits into power tools chuck securely and eliminates slip.
• 4. Titanium coated to reduce mit and heat. Heat treated and highly polished. Drills perfectly round holes in steel, brass, plastic, wood etc.
• 5. Suitable for sheet metal, sink, car repair, etc. Widely used to cut holes in a variety of material like plate, aluminum, insulation board, PVC board, the thickness. Suitable for workpieces with a thickness of 5mm or less, such as wooden boards, plastic boards, etc. Suitable for workpieces with a thickness of 2mm or less, such as lron, Aluminum, Normal Steel, etc.

Description: Material: high speed steel Surface Treatment: Titanium The Cutters Come in the Following Sizes: 4-12mm: (4mm, 6mm, 8mm, 10mm, 12mm) 5 Steps 4-20mm:( 4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm)9 Steps 4-32mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm, 30mm, 32mm)15 Steps Package included: 1 x Drill Bit 4-12mm 1 x Drill Bit 4-20mm 1 x Drill Bit 4-32mm 1x Bag Attention: -Because of the outer diameter of each step of the step drill is gradually expanded,then the corresponding cutting resistance and linear velocity will also be gradually increased. -Owing to the step drill is completely dependent on the inclined edge that is only with 1mm length,If the feed speed is too fast when drilling,it will be easily to be annealing caused by abrasion of the oblique edge. -Please give a downward force when drilling, do not press down too hard to avoid the edge wearing. Notes: 1-2cm error might exist due to manual measurements, please kindly understand. The colors deviation might differ due to different monitor settings. We provide you with the best product and service. If you have any problem, please let us know, and we will solve the problem for you. Thank you so much.