5-Piece Titanium Step Drill Bit Set - HSS Cobalt High Speed Steel Multi-Size (50 Sizes) with Aluminum Case - Perfect for Metal, Wood, Plastic & DIY Projects

Features: This set replaces 50 individual drill sets. Made by Long life high speed steel. Self starting no need for a hole. Cobalt coated to reduce friction and run cooler. Automatically deburrs holes as you drill. Includes protective padded aluminum case. Specifications: 3/16'' to 7/8'' Drill Bit: 12 Steps (3/16'', 1/4'', 5/16'', 3/8'', 7/16'', 1/2'', 9/16'', 5/8'', 11/16'', 3/4'', 13/16'', 7/8''). 1/4'' to 3/4'' Drill Bit: 9 Steps (1/4'', 5/16'', 3/8'', 7/16'', 1/2'', 9/16'', 5/8'', 11/16'', 3/4''). 1/8'' to 1/2'' Drill Bit: 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''). 3/16'' to 1/2'' Drill Bit: 6 Steps (3/16'', 1/4'', 5/16'', 3/8'', 7/16'', 1/2''). Aluminum Case Dimension: 6'' x 4'' x 1 1/2'' Package Includes: 5 x Drill Bits. 1 x Aluminum Case.

This set replaces 50 individual drill sets, each step drill bit can drill several bore diameters. It's can work as 50pcs twist drill bits. You don't have to replace drill bit constantly for different bore sizes

This set replaces 50 individual drill sets, each step drill bit can drill several bore diameters. It's can work as 50pcs twist drill bits. You don't have to replace drill bit constantly for different bore sizes

Our Titanium Step Drill Bit is made of super strong HSS steel and coated with cobalt,step drills are more durable and have better heat resistance.

Self starting - no need for a hole, the step drill bits can be used to chamfer, bur, and drill or enlarge holes. The step drill bits can work with stainless steel sheets, aluminum alloy, plastic material, and wood.

Cobalt coated to reduce friction and run cooler

Automatically deburrs holes as you drill, Two-flute design enables a faster, more stable and smoother cutting.