Product: Werkzeug Self Centering Hinge Tapper Core Drill Bit Set for Woodworking, Adjustable Door Window Drill Bits with 1 Hex Key & 8 Replacement Drill Bits (5/64 - 1/4 Inches), 16 Pieces
Brand: Werkzeug
Color: silver
Center Drill Bit: Werkzueg center drill is made of high speed steel drill bit and quenching treatment shell designed. High hardness, durable and superior drilling performance
Satisfy all you demand: Hinge drills come in 8 different sizes: 5/64', 7/64'', 2 of 9/64'', 11/64'', 13/64'', 5mm and 1/4". With 1 hex key and 8 replacement drill bits
Excellent Design: Automatic positioning center enhance accuracy and efficiency. Double-sided hole design fast and automatic discharge sawdust from the hole on both sides
Multipurpose: Perfect for hinges, handles, drawer slides, woodworking and etc. Suitable for professionals and DIYer
Important: Use low speed when drilling (usually keep in 2000r/min to 3000r/min). Too fast speed will off center, break the bit or jammed

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