Impact Hex Bit Socket Sets
Use these sockets as an alternative to a screwdriver or L-key. They are made to withstand the high torque and force of impact tools.
No. of Pieces | Includes | Material | Container Type | Each | |
1/4" Square Drive | |||||
---|---|---|---|---|---|
14 | Bit Sockets (Inch): 1/8", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8" (1 3/8" O'all Lg.) Bit Sockets (Metric): 2 mm, 2.5 mm, 3 mm, 5 mm, 6 mm, 7mm, 10 mm (1 3/8 O'all Lg.) | Black-Oxide Steel | Plastic Case | 0000000 | 0000000 |
3/8" Square Drive | |||||
5 | Bit Sockets: 4 mm, 5 mm, 6 mm, 8 mm, 10 mm (2 3/4" O'all Lg.) | Black-Oxide Steel | Metal Clip Rail | 00000000 | 00000 |
7 | Bit Sockets: 1/8", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8" (2 3/4" O'all Lg.) | Black-Oxide Steel | Metal Clip Rail | 00000000 | 00000 |
9 | Bit Sockets: 2 mm, 2.5 mm, 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 10 mm (2" O'all Lg.) | Black-Oxide Steel | Metal Clip Rail | 0000000 | 000000 |
13 | Bit Sockets (Inch): 3/16", 7/32", 1/4", 5/16", 3/8", 7/16", 1/2", (2" O'all Lg.) Bit Sockets (Metric): 4 mm, 5 mm, 6 mm, 7 mm, 10 mm, 12 mm (2" O'all Lg.) | Black-Oxide Steel | Plastic Case | 0000000 | 000000 |
3/8", 1/2" Square Drive | |||||
10 | 3/8" Square Drive Size Bit Sockets: 1/8", 5/32", 3/16", 7/32", 1/4", 5/16", 3/8" (2 23/32" O'all Lg.) 1/2" Square Drive Size Bit Sockets: 1/2", 9/16" (3 5/8" O'all Lg.) 1/2" Square Drive Size Bit Sockets: 5/8" (4" Length) | Black-Oxide Steel | Plastic Case | 0000000 | 000000 |
1/2" Square Drive | |||||
6 | Bit Sockets: 6 mm, 8 mm, 10 mm, 12 mm (3 1/4" O'all Lg.) Bit Socket: 14 mm (3 5/8" O'all Lg.) Bit Socket: 17 mm (4" O'all Lg.) | Black-Oxide Steel | Metal Clip Rail | 0000000 | 000000 |
7 | Bit Sockets: 1/4", 5/16", 3/8", 7/16" (3 1/4" O'all Lg.) Bit Sockets: 1/2", 9/16" (3 5/8" O'all Lg.) Bit Socket: 5/8" (4" O'all Lg.) | Black-Oxide Steel | Metal Clip Rail | 0000000 | 000000 |
10 | Bit Sockets: 1/4", 9/32", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4" (2 3/4" O'all Lg.) | Black-Oil-Coated Steel | Plastic Case | 000000000 | 00000 |
13 | Bit Sockets: 6 mm, 7 mm, 8 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm (4" O'all Lg.) | Black-Oxide Steel | Metal Clip Rail | 0000000 | 000000 |
18 | Bit Sockets (Inch): 1/4", 9/32", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4" (3" O'all Lg.) Bit Sockets: (Metric): 6 mm, 7 mm, 10 mm, 12 mm, 14 mm, 15 mm, 17 mm, 18 mm (3" O'all Lg.) | Black-Oxide Steel | Plastic Case | 0000000 | 000000 |
3/4" Square Drive | |||||
5 | Bit Socket: 9/16" (3 3/4" O'all Lg.) Bit Socket: 5/8" (3 7/8" O'all Lg.) Bit Socket: 3/4" (4 3/8" O'all Lg.) Bit Socket: 7/8" (4 3/4" O'all Lg.) Bit Socket: 1" (5 1/4" O'all Lg.) | Black-Oxide Steel | Metal Clip Rail | 00000000 | 000000 |
5 | Bit Sockets: 14 mm, 17 mm, 19 mm, 22 mm, 24 mm (3 1/2" O'all Lg.) | Black-Oil-Coated Steel | Plastic Case | 000000000 | 000000 |
9 | Bit Sockets: 1/2", 9/16", 5/8", 3/4", 13/16", 7/8", 1", 1 1/8", 1 1/4" (3 1/2" O'all Lg.) | Black-Oxide Steel | Metal Case | 000000000 | 000000 |
1" Square Drive | |||||
6 | Bit Sockets: 3/4", 7/8", 1", 1 1/8", 1 1/4", 1 3/8", (4" O'all Lg.) | Black-Oxide Steel | Plastic Case | 0000000 | 000000 |
6 | Bit Sockets: 14 mm, 17 mm, 19 mm, 22 mm, 24 mm, 27 mm (4" O'all Lg.) | Black-Oxide Steel | Plastic Case | 0000000 | 000000 |
Extended-Reach Impact Hex Bit Socket Sets
Extra-long bits help you access hard-to-reach fasteners. These sockets are sturdier and have more give than manual-drive sockets, so they'll withstand the high torque and force of impact tools.
No. of Pieces | Includes | Overall Lg. | Container Type | Each | |
3/8" Square Drive— Black-Oxide Steel | |||||
---|---|---|---|---|---|
7 | Bit Sockets: 3/16", 7/32", 1/4", 5/16", 3/8", 7/16", 1/2", (4" O'all Lg.) | 4" | Metal Clip Rail | 0000000 | 0000000 |
7 | Bit Sockets: 3/16", 7/32", 1/4", 5/16", 3/8", 7/16", 1/2" (6" O'all Lg.) | 6" | Metal Clip Rail | 0000000 | 000000 |
7 | Bit Sockets: 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 10 mm, 12 mm (4" O'all Lg.) | 4" | Metal Clip Rail | 0000000 | 000000 |
7 | Bit Sockets: 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 10 mm, 12 mm (6" O'all Lg.) | 6" | Metal Clip Rail | 0000000 | 000000 |
1/2" Square Drive— Black-Oxide Steel | |||||
10 | Bit Sockets: 1/4", 9/32", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 11/16", 3/4" (6" O'all Lg.) | 6" | Metal Clip Rail | 0000000 | 000000 |
13 | Bit Sockets: 6 mm, 7 mm, 8 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm (6" O'all Lg.) | 6" | Metal Clip Rail | 0000000 | 000000 |
Flex Impact Hex Bit Socket Sets
Pivot the head to access fasteners from an angle. These sockets are sturdier and have more give than manual-drive sockets, so they'll withstand the high torque and force of impact tools.
No. of Pieces | Includes | Overall Lg. | Container Type | Each | |
1/2" Square Drive—Black-Oil-Coated Steel | |||||
---|---|---|---|---|---|
8 | Bit Sockets: 1/4", 5/16", 3/8", 7/16", 1/2", 9/16", 5/8", 3/4" (3" O'all Lg.) | 3" | Plastic Case | 000000000 | 0000000 |
8 | Bit Sockets: 6 mm, 7 mm, 8 mm, 10 mm, 12 mm, 14 mm, 17 mm, 19 mm (3" O'all Lg.) | 3" | Plastic Case | 000000000 | 000000 |
Budd Wheel Impact Socket Sets
Budd Wheel Impact Socket Set | 4-Point Socket Shape | 6-Point Socket Shape | ||||
Socket Retaining Ring |
Remove and install dual wheels on trucks and trailers with the sockets in these sets. The sockets are extra deep for use with Budd wheels, so you can remove both the nut and the stud with a single socket. Sets include sockets for hex drives to access lug nuts and sockets for square drives to turn the threaded shafts on inner wheels. All are impact sockets, made to withstand the high torque and force of impact tools. Use them with an impact wrench that has a pin-style socket retainer, or use a socket retaining ring with tools that have a hole- or hole-and-ring-style socket retainer.
For technical drawings and 3-D models, click on a part number.
Hex Conversion Bit Sets for 6-Point Sockets
Convert your standard 6-point sockets into hex bit sockets with these bits. Hammer a bit into the socket; the inserted end has two nylon pellets that compress to hold it firmly in place until you punch the bit back out. The nylon pellets return to their original shape so that you can reuse the bit.
Use these bits with impact sockets—they’re sturdy enough to withstand the high torque and force of impact tools. They can also be used with hand-drive tools.
No. of Pieces | Includes | Overall Lg. | Each | |
Black-Oxide Steel | ||||
---|---|---|---|---|
9 | Bits: 5/32", 3/16", 7/32", 1/4", 5/16", 3/8", 1/2", 9/16", 5/8" | 2" | 000000 | 000000 |
Nonmarring 6-Point Impact Socket Sets
Tighten or loosen nuts and bolts without damaging the finish. The tough steel core of the socket withstands the high torque of impact tools, but the insert and outer sleeve are made of plastic, which won’t scratch chrome plating and other coatings. The hex shape achieves the best possible grip on hex fasteners to prevent rounding their points.
No. of Pieces | Components Included | Includes | Insert Material | Sleeve Material | Container Type | Each | |
1/2" Square Drive—Steel | |||||||
---|---|---|---|---|---|---|---|
9 | 9 Sockets | Deep Sockets (Inch): 3/4", 13/16", 7/8", 15/16", 1", 1 1/16" Deep Sockets (Metric): 17 mm, 19 mm, 21 mm | Plastic | Plastic | Plastic Case | 00000000 | 0000000 |
Impact Hex Bit Sockets
These sockets are made to withstand the high torque and force of impact tools.
3/4" and 1” square drive size sockets require a locking retainer. Use with an impact wrench that has a pin-style socket retainer, or use a socket retaining ring with tools that have a hole- or hole-and-ring style socket retainer.
For technical drawings and 3-D models, click on a part number.
Sockets | Replacement Bits | Retaining Rings | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Drive Size | Overall Lg. | Compatible Retaining Ring ID | Material | Finish | Bit Replaceable | Each | Each | Each | |||
Inch | |||||||||||
3/8" Square Drive | |||||||||||
1/8" | 2 3/4" | __ | Steel | Black Oxide | No | 00000000 | 000000 | 000000 | 00 | 000000 | 00 |
5/32" | 2 3/4" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
3/16" | 2 3/4" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
7/32" | 2 3/4" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
1/4" | 2 3/4" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
5/16" | 2 3/4" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
3/8" | 2 3/4" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
7/16" | 2" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
1/2" | 2" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
1/2" Square Drive | |||||||||||
1/4" | 3 1/4" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
9/32" | 3 15/16" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
5/16" | 3 1/4" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
3/8" | 3 1/4" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
7/16" | 3 1/4" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
1/2" | 3 5/8" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
9/16" | 3 5/8" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
5/8" | 4" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
11/16" | 3" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
3/4" | 3" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
3/4" Square Drive | |||||||||||
1/2" | 3 15/16" | 1 7/16" | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 0000000 | 00000 |
9/16" | 3 3/4" | 1 7/16" | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
5/8" | 3 7/8" | 1 7/16" | Steel | Black Oxide | Yes | 00000000 | 00000 | 00000000 | 000000 | 0000000 | 0000 |
3/4" | 4 3/8" | 1 5/8" | Steel | Black Oxide | Yes | 00000000 | 00000 | 00000000 | 0000 | 0000000 | 0000 |
13/16" | 3 15/16" | 1 7/16" | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 0000000 | 0000 |
7/8" | 4 3/4" | 1 5/8" | Steel | Black Oxide | Yes | 00000000 | 00000 | 00000000 | 00000 | 0000000 | 0000 |
1" | 3 5/8" | 1 7/16" | Steel | Black Oxide | Yes | 00000000 | 00000 | 00000000 | 00000 | 0000000 | 0000 |
1 1/16" | 3 15/16" | 1 7/16" | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 0000000 | 0000 |
1 1/8" | 3 15/16" | 1 7/16" | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 0000000 | 0000 |
1 3/16" | 3 15/16" | 1 7/16" | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 0000000 | 0000 |
1 1/4" | 3 15/16" | 1 7/16" | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 0000000 | 0000 |
1" Square Drive | |||||||||||
5/8" | 4" | 1 3/4" | Steel | Black Oxide | Yes | 00000000 | 00000 | 00000000 | 00000 | 0000000 | 0000 |
3/4" | 4 1/2" | 1 3/4" | Steel | Black Oxide | Yes | 00000000 | 00000 | 00000000 | 00000 | 0000000 | 0000 |
7/8" | 4 13/16" | 1 3/4" | Steel | Black Oxide | Yes | 00000000 | 00000 | 00000000 | 00000 | 0000000 | 0000 |
1" | 5 1/4" | 1 3/4" | Steel | Black Oxide | Yes | 00000000 | 00000 | 00000000 | 00000 | 0000000 | 0000 |
1 1/4" | 5 3/4" | 1 3/4" | Steel | Black Oxide | Yes | 00000000 | 00000 | 00000000 | 00000 | 0000000 | 0000 |
Metric | |||||||||||
3/8" Square Drive | |||||||||||
2 mm | 2" | __ | Steel | Black Oxide | Yes | 00000000 | 00000 | 00000000 | 0000 | 000000 | 00 |
2.5 mm | 2" | __ | Steel | Black Oxide | Yes | 00000000 | 00000 | 00000000 | 0000 | 000000 | 00 |
3 mm | 2" | __ | Steel | Black Oxide | Yes | 00000000 | 00000 | 00000000 | 0000 | 000000 | 00 |
4 mm | 2 3/4" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
5 mm | 2 3/4" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
6 mm | 2 3/4" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
7 mm | 2" | __ | Steel | Black Oxide | Yes | 00000000 | 00000 | 00000000 | 0000 | 000000 | 00 |
8 mm | 2 3/4" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
10 mm | 2 3/4" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
12 mm | 2" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
1/2" Square Drive | |||||||||||
5 mm | 1 3/4" | __ | Steel | Black Oxide | No | 0000000 | 00000 | 000000 | 00 | 000000 | 00 |
6 mm | 3 1/4" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
7 mm | 3" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
8 mm | 3 1/4" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
9 mm | 3 15/16" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
10 mm | 3 1/4" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
11 mm | 3" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
12 mm | 3 1/4" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
13 mm | 3" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
14 mm | 3 5/8" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
15 mm | 3" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
16 mm | 3" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
17 mm | 4" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
18 mm | 3" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
19 mm | 3" | __ | Steel | Black Oxide | No | 00000000 | 00000 | 000000 | 00 | 000000 | 00 |
3/4" Square Drive | |||||||||||
10 mm | 3 1/2" | 1 7/16" | Steel | Black Oxide | No | 000000000 | 00000 | 000000 | 00 | 000000 | 00 |
12 mm | 3 1/2" | 1 7/16" | Steel | Black Oxide | No | 000000000 | 00000 | 000000 | 00 | 000000 | 00 |
14 mm | 3 3/4" | 1 7/16" | Steel | Black Oxide | Yes | 00000000 | 00000 | 00000000 | 00000 | 0000000 | 0000 |
17 mm | 3 7/8" | 1 7/16" | Steel | Black Oxide | Yes | 00000000 | 00000 | 00000000 | 00000 | 0000000 | 0000 |
19 mm | 4 3/8" | 1 7/16" | Steel | Black Oxide | Yes | 00000000 | 00000 | 00000000 | 00000 | 0000000 | 0000 |
21 mm | 3 1/2" | 1 7/16" | Steel | Black Oxide | No | 0000000 | 00000 | 000000 | 00 | 0000000 | 0000 |
22 mm | 4 3/4" | 1 7/16" | Steel | Black Oxide | Yes | 00000000 | 00000 | 00000000 | 00000 | 0000000 | 0000 |
24 mm | 5 3/16" | 1 7/16" | Steel | Black Oxide | Yes | 00000000 | 00000 | 00000000 | 00000 | 0000000 | 0000 |
27 mm | 3 1/2" | 1 7/16" | Steel | Black Oxide | No | 0000000 | 00000 | 000000 | 00 | 0000000 | 0000 |
30 mm | 3 1/2" | 1 7/16" | Steel | Black Oxide | No | 0000000 | 00000 | 000000 | 00 | 0000000 | 0000 |
32 mm | 3 1/2" | 1 7/16" | Steel | Black Oxide | No | 0000000 | 00000 | 000000 | 00 | 0000000 | 0000 |
Power Hex Bit Sockets
These sockets are for use with nonimpact power tools in high-volume production and assembly. They are not for use with impact tools.
For technical drawings and 3-D models, click on a part number.
Sockets | Replacement Bits | ||||||
---|---|---|---|---|---|---|---|
Drive Size | Overall Lg. | Material | Bit Replaceable | Each | Each | ||
Inch | |||||||
3/8" Square Drive | |||||||
1/8" | 2 1/4" | Steel | Yes | 0000000 | 000000 | 0000000 | 00000 |
5/32" | 2 1/4" | Steel | Yes | 0000000 | 00000 | 0000000 | 0000 |
3/16" | 2 1/4" | Steel | Yes | 0000000 | 00000 | 0000000 | 0000 |
7/32" | 2 1/4" | Steel | Yes | 0000000 | 00000 | 0000000 | 0000 |
1/4" | 2 1/4" | Steel | Yes | 0000000 | 00000 | 0000000 | 0000 |
5/16" | 2 1/4" | Steel | Yes | 0000000 | 00000 | 0000000 | 0000 |
3/8" | 2 1/4" | Steel | Yes | 0000000 | 00000 | 0000000 | 0000 |
1/2" Square Drive | |||||||
1/4" | 2 1/2" | Steel | Yes | 0000000 | 00000 | 0000000 | 0000 |
5/16" | 2 1/2" | Steel | Yes | 0000000 | 00000 | 0000000 | 0000 |
3/8" | 2 1/2" | Steel | Yes | 0000000 | 00000 | 0000000 | 0000 |
1/2" | 2 1/2" | Steel | Yes | 0000000 | 00000 | 0000000 | 00000 |
9/16" | 2 1/2" | Steel | Yes | 0000000 | 00000 | 0000000 | 00000 |
5/8" | 2 1/2" | Steel | Yes | 0000000 | 00000 | 0000000 | 00000 |
Metric | |||||||
3/8" Square Drive | |||||||
4 mm | 2 1/4" | Steel | Yes | 0000000 | 00000 | 0000000 | 00000 |
5 mm | 2 1/4" | Steel | Yes | 0000000 | 00000 | 0000000 | 0000 |
6 mm | 2 1/4" | Steel | Yes | 0000000 | 00000 | 0000000 | 0000 |
8 mm | 2 1/4" | Steel | Yes | 0000000 | 00000 | 0000000 | 00000 |
10 mm | 2 1/4" | Steel | Yes | 0000000 | 00000 | 0000000 | 00000 |
1/2" Square Drive | |||||||
8 mm | 2 1/2" | Steel | Yes | 0000000 | 00000 | 0000000 | 00000 |
10 mm | 2 1/2" | Steel | Yes | 0000000 | 00000 | 0000000 | 00000 |
12 mm | 2 1/2" | Steel | Yes | 0000000 | 00000 | 0000000 | 00000 |
14 mm | 2 1/2" | Steel | Yes | 0000000 | 00000 | 0000000 | 00000 |
17 mm | 2 1/2" | Steel | Yes | 0000000 | 00000 | 0000000 | 00000 |
One-Piece Socket Retaining Rings
Secure 3/4" and larger square drive size impact sockets and adapters to a tool that has a hole- or a ring-and-hole style retainer. A crush gauge on the pin deforms when sockets become worn and need to be replaced.
For technical drawings and 3-D models, click on a part number.