Master Mechanic 443606 Black Oxide Jobber Length Wire Gauge Drill Bit, 3-3/8″
135 split point eliminates walking and provides quick starting. Surface treated with black oxide finish for abrasion resistance and improved chip flow. Designed for precision hole sizing such as tapping threaded holes. Wire gauge diameters fall between fractional sizes for most precise hole sizes. Taps through sizes 1/4-28 require the use of wire gauge bits.
- #17, M7
- Size: 3-3/8″
- Jobber length
- Straight shank
- 135 split point eliminates walking and provides quick starting
- Surface treated with black oxide finish for abrasion resistance and improved chip flow
- Designed for precision hole sizing such as tapping threaded holes
- Wire gauge diameters fall between fractional sizes for most precise hole sizes
- Taps through sizes 1/4-28 require the use of wire gauge bits
- Carded.
