1Pcs/3Pcs/5Pcs/6Pcs Large Cobalt HSS Step Ti Cone Drill Hole Cutter Bit Set Tool (5PCS (WITH BOX))

*****************************1PCS Feature: 1. One piece for multi-purpose, can drill holes of different diameters, open and ream, deburring, and accurate drilling 2. X-shaped opening design effectively reduces drill bit slippage, universal hex shank type 3. scale, the diameter is clear at a glance, the marking is very clear 4. When machining round holes of different sizes on thin materials, there is no need to replace the drill bit, which saves time 5. Can drill wood, stainless steel, plastic plate, copper plate, aluminum plate Specification: Item Type: Step Drill Bit Material: High speed steel Uses: Drilling wood, stainless steel, plastic plates, copper plates, aluminum plates Applicable Equipment: Electric drill, bench drill, battery drill, etc. Shank Type: General hex handle Size(approx.):4 ~ 12mm / 0.2 ~ 0.5in Number of Steps:5 Blade length per step(approx.):7mm / 0.3in Shank diameter(approx.):6.35mm / 0.3in Total length of cutter head(approx.):43mm / 1.7in Package List: 1 x Step Drill Bit ***************************3PCS-Black Feature: 1. The double design provides faster and smoother cutting, and the three flat handles make sure a firm grip. 2. Suitable for perforation of sheet metal, iron plate, aluminum plate, brass, wood, plastic, etc. 3. Made of high quality material of highspeed steel, which makes it have long service life. 4. With compact shape, take up no space and you can put it anywhere. 5. Package including 3pcs of drill bit, can meet your different needs according different situation. Specification: Item Type: Step Drill Bit Color: As Pictures Shown Material: High-Speed Steel Purpose: Multi-function drill Shank Diameter: Approx. 6mm/0.24in, 8mm/0.31in, 10mm/0.39in Package List: 3 x Step Drill Bit ***************************3PCS-Gold Feature: 1. Drill holes can be made on plastic, aluminum, copper, stainless steel and many other types of metal plates. 2. The incisive double cutting blades and X type openings design ensure a faster and smoother cutting. 3. Made of high quality high speed steel material, it is durable, not easy to damage, and has a long service life. 4. The drilling is accurate, the scale is clear, and the size is clear at a glance, which is very practical. 5. The kit contains 3 different sizes of step drill bits, 4-32, 4-20, 4-12, meet your needs, comes with an aluminum box for easy carrying. Specification: Item Type: Step Drill Material: High Speed Steel Color: As shown in the picture Product Model: 4-32, 4-20, 4-12 Application: Woodworking drilling, etc. Weight: Approx. 342g / 12.1oz Package List: 3 x Step Drill 1 x Storage Box ***************************5PCS Features: - This Item ia brand new - This set replaces 50 individual drill bits. Two-flute layout gives you faster, smoother cutting. 3-sided (-FLAT) shank will not slip in your drill's chuck. Cobalt coated for smoother cooler cutting - Ti coated to reduce friction and run cooler - Large bit has 3-sided shank and small bits have hex shank to prevent slip in drill chuck - Automatically deburrs holes as you drill - Long Life high speed steel - Includes protective padded aluminum case - Package Size:15cm*10.5cm*4.2cm(L*W*H) Sizes: #1: 3/16" to 1/2" 6 Steps (3/16'', 1/4'', 5/16", 3/8'', 7/16'', 1/2'') #2: 1/8" to 1/2" 13 Steps (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'') #3: 1/4" to 3/4'' 9 Steps (1/4'', 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4") #4: 1/4" to 1-3/8"' 10 Steps (1/4'', 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8") #5: 3/16" to 7/8" 12 Steps (1/4'', 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8") Package included: 1 x 1/4-1-3/8 Step Drill 1 x 3/16-7/8 Step Drill 1 x 1/4-3/4 Step Drill 1 x 1/8-1/2 Step Drill 1 x 3/16-1/2 Step Drill 1 x Aluminum Box ***************************6PCS Feature: 1. Can be used for deburring, chamfering, opening and reaming functions that can not be completed by twists drill. 2. Straight grooves structure and triangular shank can open a variety of sizes. 3. Open a beautiful aperture, clear scale, small vibration than ordinary twists drill. 4. Suitable for the workpiece with hardness below 25, such as iron plate, aluminum plate, PV plate, insulation board. 5. Including 5pcs drill bit of the package, meeting your different needs. Specification: Item Type: Step Drill Bit Material: High speed steel 4241 Model: No Tips: when choosing 4241 to make steel plates, pay attention to water injection and cooling. If the bit is easy to anneal due to high temperature and smoke in the process of use, the bit will be scrapped soon if the customer insists on such operation. Package List: 5 x Step Drill Bit 1 x Punch 1 x Box