Sirius&Co Step Drill 5pcs Hss Cobalt Multiple Hole 50 Sizes Step Drill Bit Set with Aluminum Case

Cobalt high speed steel along with the titanium coating ensures extreme durability, will stay new and shiny for years to come. Different sized shanks ensure compatibility with 1/4, 3/8 and 1/2 in. chuck sizes. Non-walking drill tip provides fast and smooth drills on steel sheets, aluminum sheets, wood board, plastic board etc. (the board must be smaller in thickness than the height of step drill bits). Please mark the spot that you are to drill for easier drilling and improved drill bits life. All the bits come in a well-organized case for easy transport and storage. Product Size (Aluminum Box): 15x11x4cm br Product Configuration: Aluminum Box x1 br 1/4-1-3/8″x1 branch br 3/16-7/8″x1 branch br 1/4-3/4″x1 branch br 1/8-1/2″x1 branch br 3/16-1/2″x1 branch ol li 3/16″ to 1/2″ 6 Steps (3/16”, 1/4”, 5/16″, 3/8”, 7/16”, 1/2”) /li li 1/8″ to 1/2″ 13 Steps (1/8″, 5/32″, 3/16”, 7/32″, 1/4”, 9/32″, 5/16″, 11/32″, 3/8”, 13/32″, 7/16”, 15/32″ , 1/2”) /li li 1/4″ to 3/4” 9 Steps (1/4”, 5/16″, 3/8″, 7/16″, 1/2″, 9/16″, 5/8″, 11/16″, 3/4″) /li li 1/4″ to 1-3/8″‘ 10 Steps (1/4”, 3/8″, 1/2″, 5/8″, 3/4″, 7/8″, 1″, 1-1/8″, 1-1/4″, 1-3/8″) /li li 3/16″ to 7/8″ 12 Steps (1/4”, 5/16″, 3/8″, 7/16″, 1/2″, 9/16″, 5/8″, 11/16″, 3/4″, 13/16″, 7/8″) /li /ol ul li 1 x 1/4-1-3/8 Step Drill 1 x 3/16-7/8 Step Drill 1 x 1/4-3/4 Step Drill 1 x 1/8-1/2 Step Drill 1 x 3/16-1/2 Step Drill /li /ul strong strong Notice: /strong /strong br Please keep cool and gentle using, the working life of the step drill bits can be largely prolonged by proper usage.

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Carrier: UPS/FedEx/USPS. Delivery Timescale: More than 90% of orders arrive in 10 business days after despatch.

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The following conditions must be met:

1. Items must be returned within 30 days after the purchase date.
2. Items must be unworn, undamaged and in original packaging.