Specification Brand : Tyenaza BulletPoint1 : High Speed Steel Material: Crafted from premium high speed steel material, these drill bits are of excellent hardness and durability. BulletPoint2 : Dual Sided Hole Design: Innovative design allows for automatic removal of sawdust from both sides of the hole, preventing clogging, ensuring smoothly . BulletPoint3 : Customized Drilling for Different Wood Hardness: Tailor made drill bits for various wood hardness levels. Simply use a hex wrench to disassemble the screws. BulletPoint4 : Convenient and Efficient: Effortlessly drill accurate holes with this hinge drill bit set, saving time and enhancing your woodworking projects. BulletPoint5 : Versatile Applications: This drill bit set is ideal for woodworking, window, doors, furniture, and more. 3 sizes for you to meet your different needs. ItemName : 3Pcs Self Centering Drill Bit Set, HSS 1/8in 7/64in 3/32in for Woodworking Doors Furniture Drilling Drill Bit ItemPackageDimensions_Height : 3 centimeters ItemPackageDimensions_Length : 10 centimeters ItemPackageDimensions_Width : 5 centimeters ItemTypeKeyword : countersink-bits Manufacturer : Tyenaza ModelName : Tyenaza5fmotabg94 ModelNumber : Tyenaza5fmotabg94 PartNumber : Tyenaza5fmotabg94 ProductDescription : Item Type: Woodworking Hinge Drill Bit Set Material: High Speed Steel Size: 1/8in, 7/64in, 3/32in Hex Shank Diameter: Approx. 1/4in