
HSS Straight Groove Step Drill Bit Set (3pcs)
3pcs 3-12mm 4-12mm 4-20mm HSS Straight Groove Step Drill Bit Set Package & Shipping: Free shipping all over the world 1 x 3 PC HSS step drill To Korea, Japan : it take about 7-10 days To USA, CA, Spain, France, Poland, Belgium, Portugal, United Kingdom, Germany, Italy and Netherlands: it take about 12 - 20days To other European countries and Ukraine,Belarus,Russian Federation: it take about 15-30 days To other countries: it take about 20-35 days Suitable for: Products for automotive processing, aerospace, sheet metal processing Installation and maintenance of electrical and other industries High-altitude operations with hand drills and other tools Feature : The unique step structure, a variety of standard size drill carve aperture, a box arrived on a ladder drill bit. Without the use of center punch, easy to break, a step drill specifications apply. Deburring, chamfering, expanding the oval hole. Small sway, without leading to use a center punch can carve out a nice aperture.