Drill Set, 115 Piece Screw Machine Length HSS
- Made in USA
- High speed steel
- Heavy duty 135ยบ split point
- Machine length
115 Piece high speed steel machine screw set.
Screw Machine Drill Bit Set includes 1/16" - 1/2" by 64ths, A - Z, and No. 1 - 60.
These are screw machine length drills with straight shanks. Screw machine length drills are 5/8 as long as normal jobber-length drills. These shorter drill bits are useful on mini lathes and mini mills where there isn't much distance for tools.
Includes a Huot metal index for storing the drills.
Chris' Tips
Here is a list of number drill sizes in decimal inches and millimeters.This chart shows letter drill sizes in decimal inches and millimeters.