17Pcs Hinge Boring Kit High-Speed Steel Hinge Hole Punch Kit Self-Centering Bit Set Multipurpose Drill Bit Set for Woodworking Plank Door and Window Hinge

Features: High-speed steel The self-centering bit is designed with a high-speed steel bit and a reinforced shell which owns ultra toughness durability and superior drilling performance. Meet all your demands The package includes 8 different sizes of hinge drilled: 5/64inch 7/64inch 2 of 9/64inch 11/64inch 13/64inch 5mm and 1/4inch. Also includes a hex wrench and 8 replacement drill bits. Excellent design Comes with special shapes the automatically positions center point improves accuracy and efficiency. The double-face design quickly discharge the sawdust and residue from the hole on both sides. Multifuntional Suitable for hinges handle drawer slides woodworking etc. Suitable for professionals workshops or home DIYers. Notice Please use low speed when drilling (normally 2000~3000rpm should be good ) for a too fast speed will cause it tor deviate from the center and damage the drill or cause it to jam. Specifications: Type: 17Pcs door hinge drill Material: High-speed steel Color: Silver Size(L*D); Apply: 85*8mm/inch; 1/4inch 78*5mm/3.07*0.2inch; 5mm 77*5mm/3.03*0.2inch; 13/64inch 74*4mm/2.91*0.16inch; 11/64inch 69*3.5mm/2.71*0.14inch; 9/64inch 61*3mm/2.4*0.12inch; 7/64inch 56*2mm/2.2*0.08inch; 5/64inch Weight: 300g/10.58oz