NEIKO 10198A Step Drill Bit Set | 5 Piece, 4mm- 35mm | Metric Titanium High Speed Steel Unibit, Stepper Cone Drill Bit | Two Flute Step Down Bits, 135 Degree Point

The NEIKO 10198A Step Up Drill Bit set is your all-in-one drill bit set, drill a range of different sizes with a single bit. Looking to expand holes or drill into metal, this drill bit in the shape of a cone has multiple sizes in one. A conical shaped bit that allows you to drill a variety of hole sizes without needing to change between bits. The tip of the drill bit drills the smallest hole and as you step or drill further down the diameter increases as you drill. 1 x 6mm shank: 4 to 12 mm, 9 steps(4, 5, 6, 7, 8, 9, 10, 11, 12mm) 1 x 6mm shank: 4 to 12 mm, 5 steps)4, 6, 8, 10, 12mm) 1 x 8mm shank: 6 to 18 mm, 7 steps(6, 8, 10, 12, 14, 16, 18 mm) 1 x 8mm shank: 4 to 22 mm, 10 steps(4,6,8,10,12,14,16,18, 20, 22mm) 1 x 10mm shank: 6 to 35 mm, 13 steps(6, 8, 10, 13, 16, 18, 20, 22, 25, 28, 30, 32, 35 mm) 1 Blow Mold Carrying Case

• 135° SPLIT POINT TIP: Each step down drill bit is made with high strength HSS and is black and cobalt-treated for added durability to ensure long service life and longevity. The design of the tip angle increases cutting speed with self-centering and prevents walking off the surface of workpiece.
• 2 FLUTE DESIGN: This metric stepper drill bit has a two-flute design that clears chips faster, smoother, and allows particles to escape easily making cleaner holes at any worksite.
• TRI-FLATTED SHANK: Each unibit optimally fits into power tools such as impact drill chucks securely and eliminates slip for higher efficiency of output.
• HSS STEP BIT: This step up drill bit set cuts through steel, sheet metal, wood, plexiglass, enlarges a hole, and other surfaces creating relatively clean holes with only a small amount of pressure and deburrs as you drill.
• MULTIPLE HOLE DRILL BIT: 6 millimeter shank: (9 steps- 4, 5 , 6, 7, 8 ,9 10, 11, 12 mm),(5 steps- 4, 6, 8, 10, 12 mm) and 8mm shank (7 steps- 6, 8, 10, 12, 14, 16, 18 mm),(10 steps- 4, 6, 8, 10, 12, 14, 16, 18, 20, 22mm) and 10mm shank (13 steps- 6, 8, 10, 13, 16, 18, 20, 22, 25, 28, 30, 32, 35 mm).