Brand Name: xcan DIY Supplies: Metalworking Type: Core Drill Bit High-concerned chemical: none Origin: Mainland China Model Number: DB0203JDT4032 Material: High Speed Steel Length: 100/73/65 mm Use: Metal Drilling is_customized: Yes Certification: CE DIY Supplies: Woodworking Style: Woodworking Drill Bit Set 4-12: 4,6,8,10,12 4-20: 4,6,8,10,12,14,16,18,20 4-32: 4,6,8,10,12,14,16,18,20,22,24,26,28,30,32 Name: step drill bit Choice: yes semi_Choice: yes