kkvi bộ 10 mũi khoan xoắn ốc HSS 0.7mm đa năng

Multifunction 10 Pcs Tiny Micro HSS 0.7mm Straight Shank Twist Drilling Bit Material: HSS Material: Silver Feature: Tiny HSS drill bits, offer the best heat resistance and good performance for drilling Good toughness, wear resistance, strong drilling capacity Full grinding, drilling fast High quality and extra long life 10 drill bits stored in sealed package with good protection Application: Suit to drilling iron, steel, aluminum, plastic, wood and other Suitable for a small object processing Specification: Shank Diameter: 2.1mm Drilling diameter: 0.7mm Each bucket 10 drills Overall Length: 27.5mm Quantity : 1 Set/10 Pcs Package Contents: 1 x Set(10 Pcs) Drilling Bit