Drill Figure And Parts Name

 Fitter First Year Tools Figure

    Flat Drill Fig 1

Flat Drill

Twist Drill Fig 2

Twist Drill

Parts of Twist Drill Fig 3

Parts of twist Drill

Point Angle/Cutting Angle Fig. 1

Point Angle/Cutting Angle

Helix Angle Fig 2, 3, 4

Helix Angle H, N, S

Rake Angle Helix Angle Fig 3

Rake Angle

Clearance Angle Fig 4

Lip Clearance Angle

Chisel Edge Angle/Web Angle Fig 5

Web Angle

Drills for different material

Recommend Cutting Speeds

Cutting Speeds

Drill Chuck Fig 1

Drill Chuck

Taper Slive And Socket Fig 2

Slive And Socket

Use a drift to remove drills and sockets from the machine spindle. Fig 3

Drift

To provide a recess for the head of a countersink screw, so that it is flush with the surface after fixing Fig 1

Counter Shinking

The commonly used countersinks have multiple cutting edges and are available in taper shank and straight shank. Fig 2

Counter Shinking

Countersinks with Pilot Fig 3

Counter Shinks with Pilot

Counter Boring Fig 1

Counter Boring

Counter Boring with Pilot Fig 2

Counter Boring With Pilot

Spot Facing Fig 4

Spot Facing

Reaming enlarging by finishing previously drilled holes Fig 1

Reaming

Machine Reamer Fig 2A

Hand Reamer Fig 2B

Machine Reamer Fig A 
Hand Reamer Fig B

Parts of Hand Reamer Fig 3

Parts of Hand Reamer

Flutes Fig 4

Flutes

Rake Angle Fig 5

Rake Angle

Clearance Angle Fig 6

Clearance Angle

Helix Angle Fig 7

Helix Angle

Reamers have a Long Taper Lead Fig 2

Long Taper Lead

Hand reamer with pilot Fig 4b

Hand Reamer with Pilot

Socket reamer with parallel shank (Figs 5a and 5b)

Taper pin hand reamer (Fig 5c)

Socket reamer with parallel shank (Figs 5a and 5b)
Taper pin hand reamer (Fig 5c)

straight and helical fluted reamers Fig 6

straight and helical fluted reamers