Hex Hollow Drill Steel

Detachable Bit Drill Steel Dimension By Type

Thread Type
Dimension A
Dimension B
Dimension C
Threads/Inch
D
1.180″
1-3/4″
0.868″
5
E
0.623″
7/8″
0.500″
6
H
0.998″
1-3/8″
0.711″
6

7/8″ X 3-1/4″ Shank H Thread Steel

Length Under Collar
Part Number
Weight
12″
H7312
3.00 lbs.
18″
H7318
4.00 lbs.
24″
H7324
5.00 lbs.
30″
H7330
6.00 lbs.
36″
H7336
7.00 lbs.
48″
H7348
9.00 lbs.
60″
H7360
11.00 lbs.
72″
H7372
14.00 lbs.
96″
H7396
18.00 lbs.
120″
H73120
22.00 lbs.

7/8″ X 4-1/4″ Shank H Thread Steel

Length Under Collar
Part Number
Weight
12″
H7412
3.25 lbs.
18″
H7418
4.25 lbs.
24″
H7424
5.25 lbs.
30″
H7430
6.25 lbs.
36″
H7436
7.25 lbs.
48″
H7448
9.25 lbs.
60″
H7460
12.00 lbs.
72″
H7472
13.25 lbs.

1″ X 4-1/4″ Shank H Thread Steel

Length Under Collar
Part Number
Weight
12″
H1412
4.00 lbs.
18″
H1418
5.00 lbs.
24″
H1424
7.00 lbs.
30″
H1430
9.00 lbs.
36″
H1436
10.00 lbs.
48″
H1448
12.00 lbs.
60″
H1460
15.00 lbs.
72″
H1472
18.00 lbs.
96″
H1496
23.00 lbs.
120″
H1420
28.00 lbs.

H Thread Extensions

Length Under Collar
Part Number
Weight
24″
H24X
7.00 lbs.
36″
H36X
10.00 lbs.
48″
H48X
12.00 lbs.
72″
H72X
18.00 lbs.
96″
H96X
23.00 lbs.

7/8″ X 3-1/4″ Shank E Thread Steel

Length Under Collar
Part Number
Weight
12″
E7312
2.75 lbs.
18″
E7318
3.00 lbs.
24″
E7324
3.50 lbs.
30″
E7330
5.00 lbs.
36″
E7336
5.75 lbs.
48″
E7348
8.00 lbs.

1″ X 4-1/4″ Shank D Thread Steel

Length Under Collar
Part Number
Weight
12″
D1412
4.25 lbs.
18″
D1418
5.50 lbs.
24″
D1424
6.50 lbs.
36″
D1436
9.25 lbs.
48″
D1448
11.00 lbs.
72″
D1472
15.00 lbs.

7/8″ X 3-1/4″ Shank 11 Degree Taper Steel

Length Under Collar
Part Number
Weight
12″
DS7312-11
3.00 lbs.
18″
DS7318-11
4.00 lbs.
24″
DS7324-11
5.00 lbs.
30″
DS7330-11
6.00 lbs.
36″
DS7336-11
7.00 lbs.
42″
DS7342-11
8.00 lbs.
48″
DS7348-11
9.00 lbs.
60″
DS7360-11
11.00 lbs.

1″ X 4-1/4″ Shank 11 Degree Taper Steel

Length Under Collar
Part Number
Weight
12″
DS1412-11
4.00 lbs.
18″
DS1418-11
5.00 lbs.
24″
DS1424-11
7.00 lbs.
30″
DS1430-11
9.00 lbs.

1 X 4-1/4 1″ Rope Thread

Length Under Collar
Part Number
18″
RT1001418
24″
RT1001424
30″
RT1001430
36″
RT1001436
48″
RT1001448
60″
RT1001460

Couplings and Adaptors

Description
Part Number
Weight
Coupling
HCPL
0.50 lbs.
H to D Adaptor
H-DCPL
0.75 lbs.