ITEM NAME:10 Step Drill Cone Drill Bits High Speed Steel 4241 10 Steps 1/4 to 1-3/ WVO Descriptio n Specifications: 1/4" to 1-3/8" Spiral Flute Step Bit (10 Steps) Steps: 1/4", 3/8", 1/2", 5/8", 3/4", 7/8", 1", 1-1/8", 1-1/4", 1-3/8" Shank Size: 9mm New Spiral Flute Design Cuts Faster and Straighter Two Flute Design Automatically Deburrs While you Drill 3 Flat Sides on the Shank so the Bit will Not "Spin" in the Chuck Material: HSSÂ 4241 Colour: Gold Dimensions: handle length 25 mm, diameter 9 mm Product List: 1 * Step Drill Bit Note: It is suitable for workpieces with hardness less than 25HRC, such as carbon steel, thin iron plate, insulating board, PVC board, wood board, etc. Use tools: pistol drill and bench drill are available Honesty is gold for all! NEW 1/4" to 1-3/8" Step Drill Bit Cobalt Reamer HSS Cobalt Tool
