Features 1、Titanium Coating - Coated with titanium, this step drill set performs well in heat, corrosion and rust resistance. 2、118° Split Point Tip /u0026 Dual-flute Design: increases cutting speed with self-centering and prevents walking, clears chips faster and allows particles to escape easily. It can automatically deburr holes while drilling to keep the drill bit clean. 3、Reinforced Handle: Hexagonal handle end reinforcement is more durable, more sturdy, and less prone to breakage. 4、Widely Application: A must-have for DIY lovers or professionals. Suitable for materials such as stainless steel, molds, steel, cast iron, aluminum alloy, copper, PVC, thin wooden boards, etc. It is prohibited to process materials such as glass, ceramic tiles, stone, cement, etc. 5、Easy To Carry: Light and small, does not take up space, can be stored in your toolbox and used anytime, anywhere, convenient and fast. Specification Features: Titanium Coating - Coated with titanium, this step drill set performs well in heat, corrosion and rust resistance. 118° Split Point Tip & Dual-flute Design: increases cutting speed with self-centering and prevents walking, clears chips faster and allows particles to escape easily. It can automatically deburr holes while drilling to keep the drill bit clean. Reinforced Handle: Hexagonal handle end reinforcement is more durable, more sturdy, and less prone to breakage Widely Application: A must-have for DIY lovers or professionals. Suitable for materials such as stainless steel, molds, steel, cast iron, aluminum alloy, copper, PVC, thin wooden boards, etc. It is prohibited to process materials such as glass, ceramic tiles, stone, cement, etc. Easy To Carry: Light and small, does not take up space, can be stored in your toolbox and used anytime, anywhere, convenient and fast. Specifications: Type: A: 9 Order M35 TiAlN 1/4-3/4 Bit / B: 12 Order M35 TiAlN 3/16-7/8 Bit / C: 13 Order M35 TiAlN 1/8-1/2 Bit / D: 3Pcs Assembly (Optional) Material: Steel Item Size: 1/4-3/4 Bit Length: 6.6cm/2.59inch 3/16-7/8 Bit Length: 7.7cm/3.03inch 1/8-1/2 Bit Length: 7.49cm/2.94inch Package Size: A/B: 10.5 * 2.3 * 2.3 cm / 4.13 * 0.9 * 0.9 inch C: 10.2 * 1.5 * 1.5 cm / 4.01 * 0.59 * 0.59inch D: 25 * 10 * 6 cm / 9.84 * 3.94 * 2.36 inch Package Weight: A/B/C: 70g / 2.47oz; D: 200g / 7.05oz Package List: 1 * 9 Order M35 TiAlN 1/4-3/4 Bit 1 * Plastic Box / 1 * 12 Order M35 TiAlN 3/16-7/8 Bit 1 * Plastic Box / 1 * 13 Order M35 TiAlN 1/8-1/2 Bit 1 * Plastic Box / 1 * 9 Order M35 TiAlN 1/4-3/4 Bit 1 * 12 Order M35 TiAlN 3/16-7/8 Bit 1 * 13 Order M35 TiAlN 1/8-1/2 Bit 1 * Plastic Box Package List 1 * 9 Order M35 TiAlN 1/4-3/4 Bit 1 * Plastic Box / 1 * 12 Order M35 TiAlN 3/16-7/8 Bit 1 * Plastic Box / 1 * 13 Order M35 TiAlN 1/8-1/2 Bit 1 * Plastic Box / 1 * 9 Order M35 TiAlN 1/4-3/4 Bit 1 * 12 Order M35 TiAlN 3/16-7/8 Bit 1 * 13 Order M35 TiAlN 1/8-1/2 Bit 1 * Plastic Box