Set of 5 Step Drill Bits, Milling Cutters with Titanium Coating for Steel, Wood, Plastic, Brass, Aluminum, PVC, Double-Slotted Conical Cutting Drill Bits

Titanium coating: Countersink bits with a titanium coating offer excellent resistance to corrosion, heat, and rust; reduced friction and heat; and extended service life even in extreme temperatures. extreme temperatures. Product features: 5-pitch drill bits in 50 sizes: It can be used as 50 twist drill bits. Practical, the step drill bit allows you to easily cut several holes with a single bit without having to constantly change it. Step drill bit 3/16-1/2'' (3/16, 1/4, 5/16, 3/8, 7/16, 1/2) Step drill bit 1/8-1/2'' (1/8, 5/32, 7/32, 1/4, 9/32, 5/16, 11/32, 3/8, 13/32, 7/16, 15/32, 1/2 mm) Step drill bits 1/4-3/4'' (1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4) Step Drill Bit 3/16-7/8'' (3/16, 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8) Step Drill Bits 1/4-11/8'' (1/4, 3/8, 1/2, 5/8, 3/4, 7/8, 1, 1-1/8, 1-1/4, 1-3/8)

Double cutting inserts and triple grouser shanks: Five standard HSS step drill bits feature a double grouser design for faster speeds and a triple grouser shank design to prevent bit slippage and ensure smooth softer cut.

Wide range of applications: Step drill bits can be used for chamfering, pin turning, drilling or reaming. Step drill bits can be used for stainless steel plates, aluminum alloys, plastics and wood. (The thickness of the plate should be less than the height of the step drill).

Note: The data is all measured manually, please allow 1-3cm error due to differences in light and display, there may be color differences, please refer to the actual item received.