The indent is to allow the jaws of your drill chuck to firmly tighten onto whatever driver you are using.
What are the two types of drill shanks?
Shank Type
- Annular Cutter shanks have two Weldon flats ground into the shank at a 90-degree angle. …
- Hex shanks have flats ground into the shank to resemble the shape of a hexagon. …
- Morse Taper shanks are tapered from one end to another. …
- Round shanks are the most common drill bit shank.
What does SDS shank mean?
Slotted Drive Shaft
SDS is simply the bit retention system — or how the bit is held in the drill. There is some debate as to what the “SDS” acronym stands for. The original German interpretation was “Steck-Dreh-Sitz” meaning Insert-Twist-Stay. As the bit evolved, it has come to be known as a Slotted Drive System or Slotted Drive Shaft.
What are the types of shank?
The 7 Types Of Ring Shank
- The Straight Shank. The straight shank does just what it says on the tin. …
- The Cathedral Shank. …
- The Tapered Shank. …
- The Split Shank. …
- The Knife Edge Shank. …
- The Bypass Shank. …
- The Interlocked Shank.
How should a shank clearance hole be drilled?
Quote from the video:
Quote from Youtube video: Now a clearance hole should be large enough to allow the screw to drop through without the threads having any effect. This way when you tighten it into a second board.
What is shank hole size?
Proper Drill Bit Size for Drilling Pilot Holes & Shank Holes
| SCREW GAGE NUMBER | SHANK HOLE HARD & SOFT WOOD |
|---|---|
| 0 1 2 3 4 5 6 7 8 9 10 11 12 14 16 18 20 | 1/16″ 5/64″ 3/32 7/64″ 7/64″ 1/8″ 9/64″ 5/32″ 11/64″ 3/16″ 3/16″ 13/64″ 7/32″ 1/4″ 17/64″ 19/64″ 21/64″ |
