Titanium Step Drill Bit Set & Automatic Center Punch, High-Speed Steel, 6 PCS Hex Shank Pagoda, Totally 50 Sizes, Double Cutting Blades, Aluminum Case Included

Titanium Step Drill Bit Set & Automatic Center Punch, High-Speed Steel, 6 PCS Hex Shank Pagoda, Totally 50 Sizes, Double Cutting Blades, Aluminum Case Included[Specifications and Models]: The kit includes No. 1 drill bit (10 step sizes): 1 4", 3 8", 1 2", 5 8", 3 4", 7 8", 1", 1 1 8", 1 1 4", 1 3 8"; No. 2 drill bit (12 step sizes): 3 16", 1 4", 5 16", 3 8", 7 16", 1 2", 9 16", 5 8", 11 16", 3 4", 13 16", 7 8; No. 3 drill (9 step sizes): 1 4 ", 5 16", 3 8", 7 16", 1 2", 9 16", 5 8", 11 16", 3 4"; No. 4 drill (13 step sizes): 1 8", 5 32", 3 16", 7 32", 1 4", 9 32", 5 16", 11 32", 3 8", 13 32", 7 16", 15 32",

[Specifications and Models]: The kit includes

• No.1 drill bit (10 step sizes): 1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8";
• No. 2 drill bit (12-step sizes): 3/16", 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4", 13/16", 7/8;
• No.3 drill (9 step sizes): 1/4 ", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4";
• No. 4 drill (13 step sizes): 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";
• No. 5 drill (6 steps): 3/16", 1/4", 5/16", 3/8", 7/16", 1/ 2";
• Center punch*1.

[Material]: High-quality high-speed steel with titanium coating for proven performance and durability in drilling holes in plastic, aluminum, copper, stainless steel and many other types of sheet metal.

[Optimized Design]: 135°split point and two groove design can increase the cutting speed by automatic centering, prevent movement, remove chips faster and make the particles escape easily. The tri-flat shank fits securely into the power tool chuck and eliminates slippage.

[Features]: Step drills can drill in multiple sizes. The shaft shape is hexagonal, so it can be used with impact drivers.

[Package]: The set includes a sturdy aluminum storage box for safe storage and portability.