1.You can contact the customer service. for any question regarding the product.
2.Ask the question in English to get answer faster.
3.Keep your question short and to the point.
دفع آمن مضمون

| Size | Shank Diameter | Step Range | Step Height |
| 4-12mm(5 Step) | 6mm | 4,6,8,10,12mm | 7.5mm |
| 4-12mm(9 Step) | 6mm | 4,5,6,7,8,9,10,11,12mm | 4.5mm |
| 4-20mm(9 Step) | 8mm | 4,6,8,10,12,14,16,18,20mm | 4.5mm |
| 4-32mm(15 Step) | 10mm | 4,6,8,10,12,14,16,18,20,22,24,26,28,30,32mm | 4mm |









A part of the review has been auto-translated.
The bits arrived, well packaged, unscathed. Everything looks good.
Great tool. Now I bought a bigger one, next to the previous smaller ones!
Tips:For questions about your order, place of delivery, product discount, taxation, delivery time, warranty, shipping, payment, exchange rate, and other questions unrelated to the product, please contact customer service.
A part of the QA has been auto-translated.