HSS Center Drill for all Type
Center Drills
60º Angle, Plain style, Ground:
Size | Body Dia. | Drill Dia. | Overall Length |
1 2 3 | 2/16" 3/16" 4/16" | 3/64" 5/64" 7/64" | 1-1/4" 1-7/8" 2" |
4 5 6 | 5/16" 7/16" 8/16" | 1/8" 3/16" 7/32" | 2-1/8" 2-3/4" 3" |
7 8 | 10/16" 12/16" | 1/4" 5/16" | 3-1/4" 3-1/2" |
Bell type Center Drills
60º/120º Angle, HSS Ground:
Size | Body Dia. | Drill Dia. | Bell Dia. | Overall Length |
#11 #12 #13 | 2/16" 3/16" 4/16" | 3/64" 4/64" 6/64" | .1" .15" .2" | 1-1/4" 1-7/8" 2" |
#14 #15 #16 #17 | 5/16" 7/16" 8/16" 10/16" | 7/64" 10/64" 12/64" 14/64" | .25" .35" .4" .5" | 2-1/8" 2-3/4" 3" 3-1/4" |
#18 #19 #20 | 12/16" 14/16" 16/16" | 16/64" 20/64" 24/64" | .6" .7" .8" | 3-1/2" 3-5/8" 3-3/4" |
Missile & Aircraft Mini Center Drills
60º Angle, HSS, Ground:
Size | Body Dia. | Drill Dia. | Overall Length |
000 00 0 | 1/8" 1/8" 1/8" | .020" .025" 1/32" | 1-1/4" 1-1/4" 1-1/4" |
Plain Center Drills
82º & 90º Angle, HSS Ground:
Size | Body Dia. | Drill Dia. | Overall Length |
1 2 3 | 2/16" 3/16" 4/16" | 3/64" 5/64" 7/64" | 1-1/4" 1-7/8" 2" |
4 5 6 | 5/16" 7/16" 8/16" | 1/8" 3/16" 14/32" | 2-1/8" 2-3/4" 3" |
7 8 | 10/16" 12/16" | 16/64" 20/64" | 3-1/4" 3-1/2" |
Plain Center Drill Sets
5PCS(1-5#), HSS Ground
Long Series Center Drills:
Size | Body Dia. | Drill Dia. | Overall Length |
1# 1# 1# | 1/8" 1/8" 1/8" | 3/64" 3/64" 3/64" | 3" 4" 5" |
1# 2# 2# | 1/8" 3/16" 3/16" | 3/64" 5/64" 5/64" | 6" 3" 4" |
2# 2# 3# | 3/16" 3/16" 1/4" | 5/64" 5/64" 7/64" | 5" 6" 4" |
3# 3# 4# | 1/4" 1/4" 5/16" | 7/64" 7/64" 1/8" | 5" 6" 4" |
4# 4# 5# | 5/16" 5/16" 7/16" | 1/8" 1/8" 3/16" | 5" 6" 4" |
5# 5# 6# | 7/16" 7/16" 1/2" | 3/16" 3/16" 7/32" | 5" 6" 4" |
6# 6# 7# 8# | 1/2" 1/2" 5/8" 3/4" | 7/32" 7/32" 1/4" 5/16" | 5" 6" 6" 6" |
Metric Center Drills
DIN333A, Right Hand, HSS:
Size | Shank Dia. | Overall Length |
.5mm .8mm 1mm | 3.15mm 3.15mm 3.15mm | 20.0mm 20.0mm 31.5mm |
1.25mm 1.60mm 2.00mm | 3.15mm 4.00mm 5.00mm | 31.5mm 35.5mm 40.0mm |
2.5mm 3.15mm 4.00mm | 6.30mm 8.00mm 10.0mm | 45.0mm 50.0mm 59.0mm |
5.00mm 6.30mm 8.00mm | 12.5mm 16.0mm 20.0mm | 63.0mm 71.0mm 80.0mm |
10.0mm 12.5mm | 25.0mm 31.5mm | 100mm 125mm |
Metric Center Drills
120º Bell type:
Diameter | Shank Diameter | Overall Length |
1.00mm 1.25mm 1.60mm | 4.0mm 5.0mm 6.3mm | 35.5mm 40.0mm 45.0mm |
2.00mm 2.50mm 3.15mm 4.00mm 5.00mm | 8.0mm 10.0mm 11.2mm 14.0mm 18.0mm | 50.0mm 56.0mm 60.0mm 67.0mm 75.0mm |
6.30mm 8.00mm 10.0mm | 20.0mm 25.0mm 31.5mm | 80.0mm 100.0mm 125.0mm |
Spotting & Centering Drills
High speed steel, Right Hand & Left Hand
The drills have two type angles, it is 90º & 118º, Datasheet of 90º & 118º is same.
Feature:
Prevent misalignment frequently caused by using regular drills for centering.
These short drills can be chucked close to the point ensuring accuracy and true starts.
Datasheet:
Size | Flute Length | Overall Length |
1/8" 3/16" 1/4" | 3/8" 1/2" 5/8" | 1-1/4" 1-3/8" 1-1/2" |
5/16" 3/8" 7/16" | 5/8" 1" 1" | 1-1/2" 2" 2" |
1/2" 9/16" 5/8" | 1" 1" 1-1/8" | 2" 2" 2-1/4" |
3/4" 7/8" 1" | 1-1/8" 1-1/4" 1-1/4" | 2-1/4" 2-1/2" 2-1/2" |
1-1/4" 1-1/2" 1-3/4" | 2" 1-1/2" 2-3/4" | 4" 5" 5-1/2" |
M35 cobalt spotting drills
Size | Flute Length | Overall Length |
0.118" 0.157" 0.197" | 0.47" 0.47" 0.55" | 2" 2-3/16" 2-3/8" |
0.236" 0.25" 0.315" | 0.63" 0.67" 0.83" | 2-3/4" 2-3/4" 3-1/8" |
0.375" 0.394 0.472" | 0.98" 1.10" 1.18" | 3-1/2" 3-1/2-" 4" |
0.5" 0.65" 0.63" | 1.18" 1.48" 1.48" | 4" 4-1/2" 4-1/2" |
0.75" 0.787" 0.984" 1" | 1.77" 1.77" 2.09" 2.09" | 5-1/8" 5-1/8" 6" 6-1/8" |
NC Spotting Drills:
90º & 120º,High Speed Steel
Designed with a narrow chisel edge for quick starting and a constant web
to allow for resharpening without the need for web thinning.
Size | Flute Length | Overall Length |
1/4" | 3/4" | 2-1/2" 4" 6" |
3/8" | 1-1/8" | 3-1/8" 5" 7" |
1/2" | 1-3/8" | 3-3/4" 6" 8" |
5/8" | 1-5/8" | 4-3/8" 7" 9" |
3/4" | 1-7/8" | 5" 8" 10" |
1" | 2-1/4" | 6" 8" 10" |
HSS Extra Short Spot Drills
unit:mm
Size | Flute Length | Overall Length |
3.1 | 16 | 40 |
3.2 | 16 | 40 |
3.3 | 16 | 41 |
4.1 | 16 | 44 |
4.2 | 16 | 44 |
HSS Double End Sheet Metal Drill:
Inches' form:
Size | Flute Length | Overall Length |
7/64" | 1/2" | 1-7/8" |
1/8" | 1/2" | 2" |
9/64" | ||
5/32" | 5/8" | 2-3/16" |
Metric Form:
unit:mm
Size | Flute Length | Overall Length |
3.0 3.1 3.2 | 11 11 11 | 46 49 49 |
3.25 3.3 3.5 4.0 | 11 11 14 14 | 49 49 52 55 |