Drilling Holders
Jacobs Taper Arbors
- Constructed of alloy steel for long, durable service life.
- Hardened to RC 56-60 for long service life.
- Shiny taper with black oxide finish for the best combination of accuracy and durability.
- Taper T.I.R. ≤.0002”.
- Parsymmetry™ design for high-speed operation.
- Plastic bumper protects spindle and holder during tool changes. Available on NMTB 40 and 50 arbors only.
JACOBS TAPER 1
| Part Number |
Taper Type |
A (Dia.) |
C |
G |
| B30-01JT118 |
BT 30 |
.384 |
1.18 |
.18 |
JACOBS TAPER 2
| Part Number |
Taper Type |
A (Dia.) |
C |
G |
| B30-02JT118 |
BT 30 |
.559 |
1.18 |
.18 |
| B40-02JT1 |
BT 40 |
.559 |
1.18 |
.12 |
| C40-02JT1 |
CAT 40 |
.559 |
1.50 |
.12 |
| C50-02JT1 |
CAT 50 |
.559 |
1.50 |
.12 |
| N30-02JT1 |
NMTB 30 |
.559 |
1.00 |
.12 |
| N40-02JT1 |
NMTB 40 |
.559 |
1.00 |
.12 |
| PC4-02JT1 |
PC4 |
- |
6.25 |
.12 |
| PC6-02JT1 |
PC6 |
- |
6.25 |
.12 |
JACOBS TAPER 3
| Part Number |
Taper Type |
A (Dia.) |
C |
G |
| B40-03JT1 |
BT 40 |
.811 |
1.18 |
.12 |
| C40-03JT1 |
CAT 40 |
.811 |
1.50 |
.12 |
| C50-03JT1 |
CAT 50 |
.811 |
1.50 |
.12 |
| N30-03JT1 |
NMTB 30 |
.811 |
1.00 |
.12 |
| N40-03JT1 |
NMTB 40 |
.811 |
1.00 |
.12 |
| N50-03JT1 |
NMTB 50 |
.811 |
1.50 |
.12 |
| PC4-03JT1 |
PC4 |
- |
6.25 |
.12 |
| PC6-03JT1 |
PC6 |
- |
6.25 |
.12 |
JACOBS TAPER 4
| Part Number |
Taper Type |
A (Dia.) |
C |
G |
| B40-04JT1 |
BT 40 |
1.124 |
1.18 |
.12 |
| C40-04JT1 |
CAT 40 |
1.124 |
1.50 |
.12 |
| C50-04JT1 |
CAT 50 |
1.124 |
1.50 |
.12 |
| N30-04JT1 |
NMTB 30 |
1.124 |
1.00 |
.12 |
| N40-04JT1 |
NMTB 40 |
1.124 |
1.00 |
.12 |
| N50-04JT1 |
NMTB 50 |
1.124 |
1.50 |
.12 |
| PC6-04JT1 |
PC6 |
- |
6.25 |
.12 |
JACOBS TAPER 6
| Part Number |
Taper Type |
A (Dia.) |
C |
G |
| B40-06JT1 |
BT 40 |
.676 |
1.18 |
.12 |
| C40-06JT1 |
CAT 40 |
.676 |
1.50 |
.12 |
| C50-06JT1 |
CAT 50 |
.676 |
1.50 |
.12 |
| N30-06JT1 |
NMTB 30 |
.676 |
1.00 |
.12 |
| N40-06JT1 |
NMTB 40 |
.676 |
1.00 |
.12 |
| PC6-06JT1 |
PC6 |
- |
6.25 |
.12 |
JACOBS TAPER 33
| Part Number |
Taper Type |
A (Dia.) |
C |
G |
| B30-33JT218 |
BT 30 |
.624 |
1.18 |
.22 |
| B40-33JT1 |
BT 40 |
.624 |
1.18 |
.12 |
| C40-33JT1 |
CAT 40 |
.624 |
1.50 |
.12 |
| C50-33JT1 |
CAT 50 |
.624 |
1.50 |
.12 |
| N30-33JT1 |
NMTB 30 |
.624 |
1.00 |
.12 |
| N40-33JT1 |
NMTB 40 |
.624 |
1.00 |
.12 |
| N50-33JT1 |
NMTB 50 |
.624 |
1.50 |
.12 |
| PC4-33JT1 |
PC4 |
- |
6.25 |
.12 |
| PC6-33JT1 |
PC6 |
- |
6.25 |
.12 |