Description: With plating process, this hole opener set is long-lasting and durable with high hardness and sturdiness. The chip discharge slot is smooth when drilling and also serves as a heat sink. There is a quick and clean cut provided by this opener set. It is ideal for engineering and home repairs and is suitable for glass, tile, floor tile, marble, etc. It is constructed of golden steel sand material. The length of this product is 25cm, the width is 17cm and the height is 6.2cm. It is suitable for all kinds of electric drills, bench drills, do not use impact gears to open holes. Item Name: Hole Saw Material: Golden Steel Sand Features: Durable, Multi-purpose, Practical, Sturdy Contains: 1 x 22MM Alloy Opener 1 x 28MM Alloy Opener 1 x 35MM Alloy Opener 1 x 44MM Alloy Opener 1 x 68MM Alloy Opener 1 x 73MM Alloy Opener 1 x Large Connecting Rod 1 x Small Connecting Rod 1 x Wrench Size Details: Size: 25cm x 17cm x 6.2cm/9.84" x 6.69" x 2.44" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 Set of Hole Saw