Made with quality material, practical, easy to use and use, wide application range has long service life. Features: Made of 6061 aluminum alloy, the surface is anodized, wear-resistant and practical, with long service life. Adjustable metal bushings are precisely aligned during drilling, making it easy to adjust drilling height and hole depth. The detachable design can meet different punching needs and is more powerful. Precise, smooth drilling does not destroy raw materials. It is a perfect DIY tool kit, easy to use and use. Features: Main material: aluminum alloy Color: black Quantity of knurled drill bush: 2pcs Knurled socket size: 8mm Drill sleeve quantity: 2pcs Drill Sleeve Size: 8mm / 0.3in, 15mm / 0.6in Drill bit quantity: 4pcs Drill bit size: 6mm, 8mm, 10mm, 15mm Package size: 260 * 190 * 65mm / 10.2 * 7.5 * 2.6in Package weight: 800g / 1.8lb Package List: 1 * Punch Locator 4 * Drill Bit with Stop Collar 1 * hex key 1 * socket wrench 3 * stud