مجموعة مثاقب معدنية مع 3 قطع 3 قطع مثقاب مخرش غير قابل للصدأ

نظرة عامة3-Piece Stepped Drill Bit Sheet Metal Drilling Set 3-Piece Stepped Bit 3-Piece stepped drill bit set made of High Speed ​​Steel. ; About product: ; Features: ; brand new and high quality ; Made of high quality steel; Steel, brass, wood, plastic etc. Ideal for cutting holes in a variety of materials, including ; Set of 3 drill bits, quality tool for jobs of all sizes; Titanium coated to reduce friction and heat; Heat treated and high polished. Steel, brass, plastic, wood etc. ; 3-sided shanks design to prevent slipping on the chuck; The two flute design provides faster, smoother and cleaner cuts. Each step is clearly labeled with depth diameter in steps. ; Specification: ; machining: titanium plating ; Color: gold ; Length: ; 4-12mm length:. Appox 6.3cm / 2.48 inch ; 4-20mm length:. Appox 7.3cm / 2.87 inch ; 4-32mm length:. Appox 10cm / 3.94 inch ; Specification step drill cutting features: ; Hole sizes 4-12mm in 2mm steps (5steps); 4-20mm hole sizes in 2mm steps (9 steps); 4-32mm hole sizes in 2mm steps (15 steps); Package Included: ; Set of 3 drill bits;