The Astro Pneumatic ONYX TurboStep HSS Drill Bit Set (AST-TS21) is a 21-piece collection of precision-engineered spiral fluted stepped-tip drill bits designed to outperform conventional drill bit designs across nearly all materials. Featuring a patented TurboStep tip geometry, these bits are purpose-built for automotive and industrial mechanics who demand precision and efficiency in demanding environments. Each bit is precision ground from heat-treated M2 High Speed Steel and finished with an Onyx oxide coating for exceptional durability and chip resistance. The mechanics-length design and three-flat shanks ensure reliable performance and superior access even in the most confined workspaces. Covering a size range of 1/16" to 3/8", this comprehensive set is ready to handle sheet metal, hard alloys, and challenging imperfect surfaces with confidence.
Features
Spiral fluted patented stepped-tip design outperforms conventional drill bits in nearly all materials
Eliminates bit walk and the need for pilot holes for faster, more accurate starts
Excels on hard alloys, sheet metal, and imperfect parts that are difficult to begin drilling
Precision ground from heat-treated quality M2 High Speed Steel for long-lasting sharpness and durability
Onyx oxide coating prevents chip build-up and extends bit life
Three-flat shanks provide a secure chuck grip and prevent slipping
Mechanics length designed for superior access in cramped and confined spaces
Stored in a rugged metal index case for organization and protection
Specifications
Brand: Astro Pneumatic
Model: AST-TS21
Piece Count: 21
Size Range: 1/16" to 3/8"
Material: M2 High Speed Steel
Coating: Onyx oxide
Shank Type: Three-flat
Length: 18 cm
Width: 10 cm
Height: 3 cm
Weight: 1769 g
Includes
21x TurboStep HSS Mechanics Length Drill Bits (1/16" - 3/8")
1x Metal index storage case
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