6Pcs HSS Twist Drill Bits Set 3-8mm Serrated Grooving Cutting Tap Spiral Saw Wood Metal Plastic Hole Saw Titanium Drill Tools

Hign-concerned Chemical : None Origin : China DIY Supplies : ELECTRICAL Type : Twist Drill Bit

【Fully Ground Process & 135-degree Split Point】 Fully ground spiral groove design quickly decreases friction and heat for a faster and cooler drilling performance. 135-degree split point with straight shank prevents walking and makes drilling precise and faster. No center punch is needed. 【Multiple Application】 Suitable for Cutting Hard Metal such as Stainless Steel, Steel and Cast Iron as well as Wood, Aluminum Alloy, and Other Softer Metals, including tiles, concrete, tiles, bricks, wood, plastic, glass, masonry and more. 【Work Efficiently】 The product has sharp edges and high drilling efficiency. The center of the product has sharp serrations, and with its help, the drill can continue to drill horizontally after drilling. Usage ScenariosSuitable for holing, cutting on wood, soft metal, aluminum plate, iron, etc. Specification3-8Mm Titanium Coated Hss Drill Bits Set 4mm × 1 5mm × 1 6mm × 1 6.5mm × 1 8mm × 1 3mm × 1