Description
13PC 135 Degree Heavy-Duty Cobalt Jobber Lngth Drill Set Chicago-Latrobe 550 Straw HSS-CO 8% 1/16-1/4×1/64
The CHICAGO-LATROBE 57851 is a jobber-length drill bit set consisting of 13 cobalt drill bits in fractional inch sizes ranging from 1/16" to 1/4". Right-hand cutting bits feature a 135-degree split point. The set includes a metal drill index with each drill bit possessing straight shank of 1/16" diameter. Is for fractional inch drilling within 1/16" to 1/4" size range and meets NAS 907.
Key Features:
- – Number of bits: 13, sizes from 1/16" to 1/4" by 64ths fractional inches.
- – Material: cobalt.
- – Drill point: 135-degree split point.
- – Shank type: Straight, 1/16" diameter.
- – Drill bit length: jobber-length; 4x depth-to-diameter ratio.
- – Cutting direction: Right hand.
- – Includes metal drill index for organization.
- – Flute type: Spiral.
- – Meets NAS 907.








