Somta Series 124 – HSS Extra Length Straight Shank Drill 5.5mm Insize Thread GO NOGO Plug Gauge 1/4"-20 UNC Series 4131-1B1 Faster Metal Removal – Roughs Somta Series 175 - HSS Reduced Shank (Electricians) Drill 17.5mm 1 2 flute length 4833-3
Yard notes & kiln story
Description
Somta Series 124 – HSS Extra Length Straight Shank Drill 5.5mm Insize Thread GO NOGO Plug Gauge 1 4" 20 UNC Series 4131 1B1 Faster Metal Removal – Roughs Somta Series 175 HSS Reduced Shank (Electricians) Drill 17.5mm 1 2 flute length 4833 3 Faster Metal Removal – Roughs more material per pass with less vibration two depth rods in 25mm increments