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

【High-Quality Materials】 Classic high-speed steel with a titanium coating on the surface, offering proven performance and durability for drilling holes in plastics, wood, aluminum, copper, stainless steel, and many other types of sheet metal. Titanium alloy drill bits are particularly suitable for processing copper and aluminum parts, die steel, spring steel, cast iron, iron, and other metallic materials.

【Easy to Drill】 The double-slotted spiral groove design prevents slippage, quickly removes chips and deburrs the hole, requires less pressure, and makes drilling and cutting faster and smoother; it can achieve a faster, more stable, and smoother cut. The hole can be automatically chamfered to clean the drill bit.

【Double Cutting Blade and Three Shanks】 The double cutting blades and X-type opening design ensure faster and smoother cutting; The 3-sided shank design prevents the drill chuck from slipping; with minimal pressure, the sets can cut through wood, sheet metal, steel, and other surfaces. [Uses] Suitable for DIY projects at home and general building supervision. Widely used for cutting various materials such as wood, plastic, thin iron sheets, thin aluminum sheets, and so on. It is suitable for materials with a hardness of less than 25°, such as carbon steel, with a plate thickness of less than 5 mm. [Save Time] Covering assorted pitch sizes allows you to drill or enlarge different holes with one drill bit without constantly changing bits. The size is laser-engraved into the metal, so it can be drilled precisely and won't wear down even with prolonged use. Product Description: Features: Superior quality. This step drill bit kit replaces 50 individual drill bits. The two-flute design allows for faster, more even cutting. The triangular shank (TRI-FLAT) prevents slippage in the chuck. Cobalt coating for a cooler, more even cut; titanium coating to reduce friction and run cooler. The large drill bit has a 3-sided shank, and the smaller drill bits have a hexagonal shank to prevent the chuck from slipping. Automatic hole deburring during drilling. Fast and durable work steel. Padded aluminum protective case included. 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")

Box contents:

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 x Step Drill

1 aluminum box.