CHICAGO-LATROBE 43637 15PC 135 Degree Heavy-Duty Jobber Length Drill Set

The CHICAGO-LATROBE 43637 is a jobber-length drill bit set comprising 15 pieces with fractional inch sizes ranging from 1/16" to 1/2". Made of high speed steel (HSS), the bits are intended for drilling aluminum, cast iron, and steel when used within the specified material and application limits. Each bit features a 135-degree P3 split point and a right-hand spiral direction, equipped with chip evacuation during drilling. The set includes a metal index case included for storage and complies with NAS 907 Type B standards. The drill bits have overall lengths of 1 7/8" to 6" (jobber length class). The set comes with a straight shank type of 1/6" diameter.

Key Features:

• - Number of bits: 15, sizes from 1/16" to 1/2" in 32nds increments
• - Material: High speed steel (HSS), suitable for aluminum, cast iron, steel (ISO codes K, N, P)
• - Point type: 135° P3 split point for starting characteristics consistent with P3 split-point geometry
• - Flutes: 2 spiral flutes with helix angles between 21° and 34°
• - Shank: Straight, 1/6" diameter
• - Drill length class: Jobber-length with overall lengths of 1 7/8" to 6"
• - Spiral direction: Right hand
• - Includes metal drill index case for storage

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