5pcs HSS Cobalt Titanium Step Drill Bits Multle Hole 50 Sizes High Speed

Note:

Cant be used for stainle steel and the steel thickne is le than 3mm

Due to the light and screen setting difference, the item's color may be slightly different from the pictures.

Please allow slight dimension difference due to different manual measurement.

Features:

100% brand new and high quality. 5pcs H Cobalt Multle Hole 50 Sizes Step Drill Bit Set W/ Aluminum Case. H Cobalt Multle Hole 50 Sizes Step Drill Bit Set. HSS Cobalt Drill Bit Set 50 Sizes Step Tools Multle Hole. This set replaces 50 individual drill bits. 3-sided (TRI-FLAT) shank will not sl in your drill's chuck. Cobalt coated for smoother cooler cutting. SELF STARTING - No need for a pilot hole. Cobalt coated to reduce friction and run cooler. Large bit has 3-sided shank and small bits have hex shank to prevent sl in drill chuck. Automatically deburrs holes as you drill. Long Life True M2 high speed steel . Includes protective padded aluminum case. Specifications: Two flutes, automatically deburrs as you drill. Tri-flat shank for sure gr. Material:HSS Shank: Triangle shank Quantity: 5PCS Sizes: #1: 3/16" to 1/2" 6 Steps (3/16'', 1/4'', 5/16", 3/8'', 7/16'', 1/2'') #2: 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'') #3: 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") #4: 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") #5: 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") Drill size        Shank Diameter 1/4-1-3/8              9mm 3/16-7/8               9mm 1/4-3/4                 9mm 1/8-1/2                 6mm 3/16-1/2               6mm Package included 1pc 1/4-1-3/8 H Cobalt Multle Hole 50 Sizes Step Drill Bit Set 1pc 3/16-7/8 H Cobalt Multle Hole 50 Sizes Step Drill Bit Set 1pc 1/4-3/4 H Cobalt Multle Hole 50 Sizes Step Drill Bit Set 1pc 1/8-1/2 H Cobalt Multle Hole 50 Sizes Step Drill Bit Set 1pc 3/16-1/2 H Cobalt Multle Hole 50 Sizes Step Drill Bit Set

About shping
Shping and Packaging All it will be double checked and well packed before sending.It will be dispatched within 2 business days after buyers pay for the order. It usually takes about 14 to 18 working days for delivering the package to the destination(for e areas,it may take a little longer). 

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