Effektwerk 5 Pc Drill Bit Set for Hard Tiles (6/8/10/12 mm), Diamond Hole Saw Kit Glass, Granite, Ceramic & Porcelain Stoneware, Core Bits w/Center Drill, ¼ Hex Shank

STRONG DRILLING RESULTS - Achieve excellent drilling results and neat and precise finishing w/ heavy-duty self-sharpening diamond drill bits; Integrated cooling wax efficiently reduces heating of drill bits and resists wear and tear VERSATILE - Gives a neat and professional finishing touch to any material; Seamlessly works on all surfaces including hard tiles, glass, granite, marble and porcelain stoneware UNIVERSAL COMPATIBILITY - Drill bits are equipped w/ standard 1/4 inch hex shank making them compatible with wide range of common drills and cordless screwdrivers SET INCLUDES - 5 Drill bits in total; 4 tile drill bits (6mm/ 8mm/ 10mm/ 12mm) and 1 carbide tipped centre drill bit (6mm) for pre-drilling of precise holes; Step-by-step user instructions also included TRUSTED QUALITY - Effektwerk is a globally trusted company, dedicated to manufacturing heavy-duty tools to bring utmost convenience to your daily life and industrial operations while ensuring enduring performance and durability