Product Name: High Speed Steel Core Drill Step Drill Model NO.: SSAS Usage: metal Drilling Material: High Speed Steel Type: Core Drill Bit Length: 75mm Customized: Customized Applications: Building and Industrial Condition: New Classification: HSS Trademark: CHTOOLS Transport Package: Plastic Box, Transparent Plastic Box Specification: 75mm Origin: China HS Code: 8207509000 Product Description High speed steel Step Drill (SSAS)1. Features: one drill = multiple drills 2. Material: HSS-E 3. Type: straight & spiral flutes; complete in specifications;TiN and TiALN coatings are available to extend service life. 4. Applicable work materials: steel plates and various other thin plates of stainless steel, copper, aluminum, etc. 5. Applicable equipment: drilling machine, electric hand drill, magnetic drill etc. TypeSizeOverall lengthSSHSSSAS-1105,7,9,11,13,15,17,19,21,23,2585SSHS