| Name & Figure |
Symbol & Materials |
Application & Advantage |
Range of Stock |
Hand Reamer
 |
GEM 100
GEM 115
HSS |
Straight & Spiral Flute, JIS, H7
Tolerance
Suitable for thru Hole |
1mm~50mm
|
|
Hi Helical Reamer
|
GEM 445
M35
M42
|
LH Spiral45' DIN, H7 T olerance
Much Higher Feed rate about 50%
ST, MT Shank
|
2mm~40mm
|
|
SpiralChucking Reamer
|
GEM 407
M35
M42
|
LHSpiral7'
DIN, H7 Tolerance
For Precision Mold
Suitable for thru Hole
ST, MT Shank
|
2mm~40mm |
|
Carbide Helical Reamer
|
GEM C445
Carbide
(Ultra Fine)
|
LHSpiral45'
Much Higher Feed rate about 50%
ST, MT Shank
|
2mm~32mm
|
|
Carbide
SpiralChucking Reamer
|
GEM C407
Carbide
(Ultra Fine)
|
LHSpiral7'
DIN, H7 Tolerance
For Precision Mold
Suitable for thru Hole
ST, MT Shank
|
2mm~32mm |
|
Long Hi Helical Reamer
Long Spiral Chucking Reamer
|
GEM 475
GEM 437
M35
M42
|
H7 Tolerance
ST, MT Shank
LH Spiral 7' ,45'
|
5mm~25mm
|
|
Carbide Reamer
|
GEM C100
Carbide
(Ultra Fine)
|
All Solide Carbide
Straight Flute
H7 Tolerance
|
1mm~16mm
|
|
Carbide super Helical Reamer
|
GEM JC460Carbide
(Ultra Fine)
|
LHSpiral60'
JIS, J5 Tolerance
Much Higher Feed rate about 50%
|
2mm~32mm
|
|
HSS NC Spot Drill
|
GEM 900
M35
|
For centering & Chamfering of tapping holes in one operation 90', 120'
|
2mm~25mm
|
|
Carbide NC Spot Drill
|
GEM C900 Carbide
(Ultra Fine)
|
For centering and chamfering of tapping holes in one operation 90', 120'
|
2mm~25mm |
|
Counter Bore
|
GEM 625
HSS
|
RH Spiral, 4F
For Mold Bolt
|
3mm~25mm
|
|
Counter Sink Hole
|
GEM 890
GEM 850
M35
M42
|
Burr Away
Chamfering
TiN, TiALN Available
|
6mm~50mm
|
|
Counter Sink 1F
|
GEM 891
GEM 851
M35
M42
|
Burr Away
Chamfering
TiN, TiALN Available
|
6mm~50mm |
|
Counter Sink 3F
|
GEM 893
GEM 853
M35
M42
|
Burr Away
Chamfering
TiN, TiALN Available |
6mm~50mm |
|
Carbide Step Drill
|
GEM STD Carbide
(Ultra Fine)
|
One tool
For two opertion 90',180' Step
|
M3~M20
|
|
Carbide Burnishing Reamer
|
GEM BD Carbide
(Ultra Fine)
|
Self Centering function
Guide function
Excellent surface
|
3mm~16mm
|
|
Carbide Center Drill
|
GEM C700 Carbide
(Ultra Fine)
|
Centering
h6 Shank
RH 8'
|
1mm~6mm
|
|
Accu Center
|
GEM ACU100
|
For Making Setting point
|
Au-10
|
|
HSS Coner Rounding Cutter
|
GEM 810
M42
|
For making formR
4F
|
1mm~20mm
|
|
Carbide Coner Rounding Cutter
|
GEM C810 Carbide
(Ultra Fine)
|
For making formR
2F ~ 3F
|
0.5mm~12mm
|
|
Carbide Tap
|
GEM TPH Carbide
(Ultra Fine)
|
All Solid
Straight & Spiral Flute
Level 3
|
3mm~16mm
|
|
Helical T-Cutter
|
GEM THCT
M2
|
RH Spiral25'
Unequal flutes
Higher performance than T-solt Cutter
TiN, TiALN
|
10mm~50mm
|
|
Pilot Drill
|
GEM TPD
M42
TiN, TiALN
|
For Centering
Oil Coolant
TiN, TiALN
|
6mm~30mm
|
|
Spot Weld Drill
|
GEM SWD
M42
|
For disassemble spot weld parts
|
6mm~8mm
|
|
Step Drill
|
GEM 1400
M35
M42
|
For making various holes
|
6mm~12mm
|
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