[PREMIUM MATERIAL]-This right angle drill attachment set is made of heavy-duty chrome-vanadium steel, durable, withstanding high pressure; [DIMENSION]- 2 different length is included in the package to satisfy various use: Short-5.9mm (2.3) ; Long- 140mm (5.5); Both right angle drill bit adapter have standard 1/4 Hex Shank and 1/4 Hex Socket; The maximum torque of the right angle driver adapter set is 15N; Only for right angle head; [105 EXTENSION]- 105 design of the right angle drill adapter allows access to tight space; [FEATURE]- With strong build-in magnetic power, the right angle drill attachment can hold standard 1/4 inch hex drilling and drive bits powerfully without falling; [WIDELY USED]- With standard 1/4 Hex Shank and 1/4 Hex Socket, this right angle drill bit adapter set is compatible with most power drills and screwdriver Sets.