SKU: GWSBXSTI Categories: , ,

Series BXSTI

SKU: GWSBXSTI Categories: , ,

Additional information

Brand

GWS Tool Group

Series

BXSTI

 

The HSS Taps Series BXSTI is a specialized line of high-speed steel taps engineered for creating precise and durable threads in materials requiring exceptional strength and reliability. Designed to handle challenging threading applications, these taps are particularly well-suited for industries such as aerospace, automotive, and high-performance engineering.

Crafted from premium high-speed steel, the BXSTI series taps exhibit excellent wear resistance and toughness, making them ideal for threading hard materials. The series includes both straight and spiral fluted taps, with the spiral flutes optimized for efficient chip evacuation, particularly in blind hole applications.

The BXSTI taps are available in a variety of sizes and pitch configurations, ensuring precise and consistent threading across different applications. The design includes taper taps for initiating threads, plug taps for through-hole threading, and bottoming taps for completing threads to the bottom of blind holes.

To further enhance their performance, BXSTI taps can be coated with advanced materials such as Titanium Nitride (TiN), Titanium Carbonitride (TiCN), or Titanium Aluminum Nitride (TiAlN). These coatings significantly reduce friction, increase surface hardness, and extend the lifespan of the taps, thereby improving thread quality and reducing tool wear.

The BXSTI series is engineered to meet the rigorous demands of precision threading tasks, offering a combination of high-quality construction, efficient chip management, and adaptability across various high-stress applications.

 

Part
Thread Size
Classification
Thread Limit
Min Tap/Drill Size
Max Tap/Drill Size
Shank (C)
Square Size (D)
OAL (L)
Coating
2-56
UNC STI
H2
0.100
0.102
.141
.110
1-15/16
Bright
2-56
UNC STI
H2
0.100
0.102
.141
.110
1-15/16
Nitride/Steam
2-56
UNC STI
H2
0.100
0.102
.141
.110
1-15/16
TiCN
2-56
UNC STI
H2
0.100
0.102
.141
.110
1-15/16
TiN
2-56
UNC STI
H2
0.100
0.102
.141
.110
1-15/16
Super TiN
2-56
UNC STI
H3
0.101
0.102
.141
.110
1-15/16
Bright
2-56
UNC STI
H3
0.101
0.102
.141
.110
1-15/16
Nitride/Steam
2-56
UNC STI
H3
0.101
0.102
.141
.110
1-15/16
TiCN
2-56
UNC STI
H3
0.101
0.102
.141
.110
1-15/16
TiN
2-56
UNC STI
H3
0.101
0.102
.141
.110
1-15/16
Super TiN
4-40
UNC STI
H2
0.131
0.134
.168
.131
2-1/8
Bright
4-40
UNC STI
H2
0.131
0.134
.168
.131
2-1/8
Nitride/Steam
4-40
UNC STI
H2
0.131
0.134
.168
.131
2-1/8
TiCN
4-40
UNC STI
H2
0.131
0.134
.168
.131
2-1/8
TiN
4-40
UNC STI
H2
0.131
0.134
.168
.131
2-1/8
Super TiN
4-40
UNC STI
H3
0.132
0.134
.168
.131
2-1/8
Bright
4-40
UNC STI
H3
0.132
0.134
.168
.131
2-1/8
Nitride/Steam
4-40
UNC STI
H3
0.132
0.134
.168
.131
2-1/8
TiCN
4-40
UNC STI
H3
0.132
0.134
.168
.131
2-1/8
TiN
4-40
UNC STI
H3
0.132
0.134
.168
.131
2-1/8
Super TiN
6-32
UNC STI
H2
0.162
0.165
.194
.152
2-3/8
Bright
6-32
UNC STI
H2
0.162
0.165
.194
.152
2-3/8
Nitride/Steam
6-32
UNC STI
H2
0.162
0.165
.194
.152
2-3/8
TiCN
6-32
UNC STI
H2
0.162
0.165
.194
.152
2-3/8
TiN
6-32
UNC STI
H2
0.162
0.165
.194
.152
2-3/8
Super TiN
6-32
UNC STI
H3
0.162
0.165
.194
.152
2-3/8
Bright
6-32
UNC STI
H3
0.162
0.165
.194
.152
2-3/8
Nitride/Steam
6-32
UNC STI
H3
0.162
0.165
.194
.152
2-3/8
TiCN
6-32
UNC STI
H3
0.162
0.165
.194
.152
2-3/8
TiN
6-32
UNC STI
H3
0.162
0.165
.194
.152
2-3/8
Super TiN
8-32
UNC STI
H2
0.188
0.191
.220
.165
2-3/8
Bright
8-32
UNC STI
H2
0.188
0.191
.220
.165
2-3/8
Nitride/Steam
8-32
UNC STI
H2
0.188
0.191
.220
.165
2-3/8
TiCN
8-32
UNC STI
H2
0.188
0.191
.220
.165
2-3/8
TiN
8-32
UNC STI
H2
0.188
0.191
.220
.165
2-3/8
Super TiN
8-32
UNC STI
H3
0.188
0.191
.220
.165
2-3/8
Bright
8-32
UNC STI
H3
0.188
0.191
.220
.165
2-3/8
Nitride/Steam
8-32
UNC STI
H3
0.188
0.191
.220
.165
2-3/8
TiCN
8-32
UNC STI
H3
0.188
0.191
.220
.165
2-3/8
TiN
8-32
UNC STI
H3
0.188
0.191
.220
.165
2-3/8
Super TiN
8-32
UNC STI
H4
0.189
0.192
.220
.165
2-3/8
Bright
8-32
UNC STI
H4
0.189
0.192
.220
.165
2-3/8
TiCN
8-32
UNC STI
H4
0.189
0.192
.220
.165
2-3/8
TiN
8-32
UNC STI
H4
0.189
0.192
.220
.165
2-3/8
Super TiN
10-24
UNC STI
H2
0.221
0.226
.255
.191
2-1/2
Bright
10-24
UNC STI
H3
0.222
0.226
.255
.191
2-1/2
Bright
10-24
UNC STI
H3
0.222
0.226
.255
.191
2-1/2
Nitride/Steam
10-24
UNC STI
H3
0.222
0.226
.255
.191
2-1/2
TiCN
10-24
UNC STI
H3
0.222
0.226
.255
.191
2-1/2
TiN
10-24
UNC STI
H3
0.222
0.226
.255
.191
2-1/2
Super TiN
10-24
UNC STI
H4
0.222
0.227
.255
.191
2-1/2
Bright
10-24
UNC STI
H4
0.222
0.227
.255
.191
2-1/2
TiN
10-24
UNC STI
H4
0.222
0.227
.255
.191
2-1/2
Super TiN
10-32
UNF STI
H2
0.214
0.217
.255
.191
2-1/2
Bright
10-32
UNF STI
H2
0.214
0.217
.255
.191
2-1/2
Nitride/Steam
10-32
UNF STI
H2
0.214
0.217
.255
.191
2-1/2
TiCN
10-32
UNF STI
H2
0.214
0.217
.255
.191
2-1/2
TiN
10-32
UNF STI
H2
0.214
0.217
.255
.191
2-1/2
Super TiN
10-32
UNF STI
H3
0.214
0.217
.255
.191
2-1/2
Bright
10-32
UNF STI
H3
0.214
0.217
.255
.191
2-1/2
Nitride/Steam
10-32
UNF STI
H3
0.214
0.217
.255
.191
2-1/2
TiCN
10-32
UNF STI
H3
0.214
0.217
.255
.191
2-1/2
TiN
10-32
UNF STI
H3
0.214
0.217
.255
.191
2-1/2
Super TiN
10-32
UNF STI
H4
0.215
0.218
.255
.191
2-1/2
Bright
10-32
UNF STI
H4
0.215
0.218
.255
.191
2-1/2
Nitride/Steam
10-32
UNF STI
H4
0.215
0.218
.255
.191
2-1/2
TiCN
10-32
UNF STI
H4
0.215
0.218
.255
.191
2-1/2
TiN
10-32
UNF STI
H4
0.215
0.218
.255
.191
2-1/2
Super TiN
1/4-20
UNC STI
H2
0.288
0.293
.318
.238
2-23/32
Bright
1/4-20
UNC STI
H2
0.288
0.293
.318
.238
2-23/32
TiN
1/4-20
UNC STI
H2
0.288
0.293
.318
.238
2-23/32
Super TiN
1/4-20
UNC STI
H3
0.288
0.293
.318
.238
2-23/32
Bright
1/4-20
UNC STI
H3
0.288
0.293
.318
.238
2-23/32
Nitride/Steam
1/4-20
UNC STI
H3
0.288
0.293
.318
.238
2-23/32
TiCN
1/4-20
UNC STI
H3
0.288
0.293
.318
.238
2-23/32
TiN
1/4-20
UNC STI
H3
0.288
0.293
.318
.238
2-23/32
Super TiN
1/4-20
UNC STI
H4
0.289
0.294
.318
.238
2-23/32
Bright
1/4-20
UNC STI
H4
0.289
0.294
.318
.238
2-23/32
Nitride/Steam
1/4-20
UNC STI
H4
0.289
0.294
.318
.238
2-23/32
TiCN
1/4-20
UNC STI
H4
0.289
0.294
.318
.238
2-23/32
TiN
1/4-20
UNC STI
H4
0.289
0.294
.318
.238
2-23/32
Super TiN
1/4-28
UNF STI
H2
0.277
0.281
.318
.238
2-23/32
Bright
1/4-28
UNF STI
H2
0.277
0.281
.318
.238
2-23/32
Nitride/Steam
1/4-28
UNF STI
H2
0.277
0.281
.318
.238
2-23/32
TiCN
1/4-28
UNF STI
H2
0.277
0.281
.318
.238
2-23/32
TiN
1/4-28
UNF STI
H3
0.278
0.281
.318
.238
2-23/32
Bright
1/4-28
UNF STI
H3
0.278
0.281
.318
.238
2-23/32
Nitride/Steam
1/4-28
UNF STI
H3
0.278
0.281
.318
.238
2-23/32
TiCN
1/4-28
UNF STI
H3
0.278
0.281
.318
.238
2-23/32
TiN
1/4-28
UNF STI
H3
0.278
0.281
.318
.238
2-23/32
Super TiN
1/4-28
UNF STI
H4
0.278
0.282
.318
.238
2-23/32
Bright
1/4-28
UNF STI
H4
0.278
0.282
.318
.238
2-23/32
TiCN
1/4-28
UNF STI
H4
0.278
0.282
.318
.238
2-23/32
TiN
1/4-28
UNF STI
H4
0.278
0.282
.318
.238
2-23/32
Super TiN
5/16-18
UNC STI
H3
0.355
0.360
.323
.242
3-5/32
Bright
5/16-18
UNC STI
H3
0.355
0.360
.323
.242
3-5/32
TiN
5/16-18
UNC STI
H3
0.355
0.360
.323
.242
3-5/32
Super TiN
5/16-18
UNC STI
H4
0.355
0.361
.323
.242
3-5/32
Bright
5/16-18
UNC STI
H4
0.355
0.361
.323
.242
3-5/32
TiN
5/16-18
UNC STI
H4
0.355
0.361
.323
.242
3-5/32
Super TiN
5/16-18
UNC STI
H5
0.356
0.361
.323
.242
3-5/32
Bright
5/16-18
UNC STI
H5
0.356
0.361
.323
.242
3-5/32
TiCN
5/16-18
UNC STI
H5
0.356
0.361
.323
.242
3-5/32
TiN
5/16-18
UNC STI
H5
0.356
0.361
.323
.242
3-5/32
Super TiN
3/8-16
UNC STI
H3
0.422
0.428
.367
.275
3-3/8
Bright
3/8-16
UNC STI
H3
0.422
0.428
.367
.275
3-3/8
TiCN
3/8-16
UNC STI
H3
0.422
0.428
.367
.275
3-3/8
TiN
3/8-16
UNC STI
H3
0.422
0.428
.367
.275
3-3/8
Super TiN
3/8-16
UNC STI
H4
0.423
0.429
.367
.275
3-3/8
Bright
3/8-16
UNC STI
H5
0.423
0.429
.367
.275
3-3/8
Bright
3/8-16
UNC STI
H5
0.423
0.429
.367
.275
3-3/8
Nitride/Steam
3/8-16
UNC STI
H5
0.423
0.429
.367
.275
3-3/8
TiN
3/8-16
UNC STI
H5
0.423
0.429
.367
.275
3-3/8
Super TiN
M2 x 0.4
M STI
D2
0.091
0.093
.141
.110
1-7/8
Bright
M2 x 0.4
M STI
D2
0.091
0.093
.141
.110
1-7/8
TiN
M2 x 0.4
M STI
D3
0.092
0.093
.141
.110
1-7/8
Bright
M2 x 0.4
M STI
D3
0.092
0.093
.141
.110
1-7/8
TiN
M2 x 0.4
M STI
D3
0.092
0.093
.141
.110
1-7/8
Super TiN
M2.5 x 0.45
M STI
D2
0.112
0.114
.141
.110
1-15/16
Bright
M2.5 x 0.45
M STI
D2
0.112
0.114
.141
.110
1-15/16
TiN
M2.5 x 0.45
M STI
D3
0.113
0.115
.141
.110
1-15/16
Bright
M2.5 x 0.45
M STI
D3
0.113
0.115
.141
.110
1-15/16
Nitride/Steam
M2.5 x 0.45
M STI
D3
0.113
0.115
.141
.110
1-15/16
TiCN
M2.5 x 0.45
M STI
D3
0.113
0.115
.141
.110
1-15/16
TiN
M2.5 x 0.45
M STI
D3
0.113
0.115
.141
.110
1-15/16
Super TiN
M3 x 0.5
M STI
D2
0.133
0.135
.168
.131
2-1/8
Bright
M3 x 0.5
M STI
D2
0.133
0.135
.168
.131
2-1/8
TiCN
M3 x 0.5
M STI
D2
0.133
0.135
.168
.131
2-1/8
TiN
M3 x 0.5
M STI
D2
0.133
0.135
.168
.131
2-1/8
Super TiN
M3 x 0.5
M STI
D3
0.134
0.136
.168
.131
2-1/8
Bright
M3 x 0.5
M STI
D3
0.134
0.136
.168
.131
2-1/8
Nitride/Steam
M3 x 0.5
M STI
D3
0.134
0.136
.168
.131
2-1/8
TiN
M3 x 0.5
M STI
D3
0.134
0.136
.168
.131
2-1/8
Super TiN
M3.5 x 0.6
M STI
D3
0.156
0.159
.194
.152
2-3/8
Bright
M3.5 x 0.6
M STI
D4
0.157
0.159
.194
.152
2-3/8
Bright
M4 x 0.7
M STI
D3
0.179
0.182
.194
.152
2-3/8
Bright
M4 x 0.7
M STI
D3
0.179
0.182
.194
.152
2-3/8
Nitride/Steam
M4 x 0.7
M STI
D3
0.179
0.182
.194
.152
2-3/8
TiN
M4 x 0.7
M STI
D3
0.179
0.182
.194
.152
2-3/8
Super TiN
M4 x 0.7
M STI
D4
0.180
0.182
.194
.152
2-3/8
Bright
M4 x 0.7
M STI
D4
0.180
0.182
.194
.152
2-3/8
TiN
M4 x 0.7
M STI
D4
0.180
0.182
.194
.152
2-3/8
Super TiN
M5 x 0.8
M STI
D3
0.221
0.224
.255
.191
2-1/2
Bright
M5 x 0.8
M STI
D3
0.221
0.224
.255
.191
2-1/2
Nitride/Steam
M5 x 0.8
M STI
D3
0.221
0.224
.255
.191
2-1/2
TiN
M5 x 0.8
M STI
D3
0.221
0.224
.255
.191
2-1/2
Super TiN
M5 x 0.8
M STI
D4
0.222
0.225
.255
.191
2-1/2
Bright
M5 x 0.8
M STI
D4
0.222
0.225
.255
.191
2-1/2
TiCN
M5 x 0.8
M STI
D4
0.222
0.225
.255
.191
2-1/2
TiN
M5 x 0.8
M STI
D4
0.222
0.225
.255
.191
2-1/2
Super TiN
M6 x 1.0
M STI
D4
0.267
0.271
.318
.238
2-23/32
Bright
M6 x 1.0
M STI
D4
0.267
0.271
.318
.238
2-23/32
Nitride/Steam
M6 x 1.0
M STI
D4
0.267
0.271
.318
.238
2-23/32
TiN
M6 x 1.0
M STI
D4
0.267
0.271
.318
.238
2-23/32
Super TiN
M6 x 1.0
M STI
D5
0.267
0.271
.318
.238
2-23/32
Bright
M6 x 1.0
M STI
D5
0.267
0.271
.318
.238
2-23/32
TiN
M6 x 1.0
M STI
D5
0.267
0.271
.318
.238
2-23/32
Super TiN
M8 x 1.25
M STI
D5
0.353
0.358
.381
.286
2-15/16
Bright
M8 x 1.25
M STI
D5
0.353
0.358
.381
.286
2-15/16
TiN
M8 x 1.25
M STI
D5
0.353
0.358
.381
.286
2-15/16
Super TiN
M8 x 1.25
M STI
D6
0.354
0.359
.381
.286
2-15/16
Bright
M8 x 1.25
M STI
D6
0.354
0.359
.381
.286
2-15/16
TiN
M8 x 1.25
M STI
D6
0.354
0.359
.381
.286
2-15/16
Super TiN