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See more product details Produce Name: VTEVER 13 pcs Cobalt Drill Bit Set Item Size: 5.2 x 3.1 x 0.5 inches Weight of Goods: 0.12 Kg / 4.83 Ounces Material: M35 HSS Cobalt 5% Angle Point: 135 Degree Flute Type: Spiral Shank Type: Straight and Round Shank 13 pcs Size Includes: 1/16" 5/64" 3/32" 7/64" 1/8" 9/64" 5/32" 11/64" 3/16" 13/64" 7/32" 15/64" 1/4". M35 Cobalt HSS: High quality M35 cobalt-containing high speed steel imperial twist drill, portable and beautiful 13pcs set, is more suitable for hard metal, stainless steel ,cast iron, high temperature alloy, titanium alloy special drilling, sharp and durable, smooth drilling, high wear resistance, high service life. The hard plastic box drill set in hand, 13 pcs 1 / 16 to 1 / 4 inch drills, meet the daily home hard metal drilling application.