Spanner Screwdrivers | McMaster-Carr

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35 Products

Screwdrivers

These standard screwdrivers can be found in every tool box.

Drilled spanner drivers fit screws that have two drilled holes.

Drilled Spanner

				Shaft
For Screw Size	For Screw Head Diameter	For Hole Center-to-Center	Overall Lg.	Lg.	O'all Wd.	Material	Handle Material		Each
No. 4	0.183"-0.235"	0.094"	8"	4"	1/4"	Steel	Plastic	000000000	000000
No. 6	0.266"-0.29"	0.125"	8"	4"	1/4"	Steel	Plastic	000000000	00000
No. 8	0.306"-0.322"	0.156"	8"	4"	1/4"	Steel	Plastic	000000000	00000
No. 10	0.313"-0.399"	0.188"	8"	4"	1/4"	Steel	Plastic	000000000	00000
No. 12	0.357"-0.454"	0.218"	8"	4"	1/4"	Steel	Plastic	000000000	00000
No. 14	0.414"-0.525"	0.25"	8"	4"	5/16"	Steel	Plastic	000000000	00000

Screwdriver Sets

Sets include an assortment of screwdrivers.

Drilled spanner drivers fit screws that have two drilled holes.

Drilled Spanner

Number of Pieces	Includes	Handle Material	Container Type	Material		Each
3	Drilled Spanner Screw Remover for No. 6 (1/8" Ctr.-to-Ctr.)—8" O'all Lg. Drilled Spanner Screw Remover for No. 8 (5/32" Ctr.-to-Ctr.)—8" O'all Lg. Drilled Spanner Screw Remover for No. 10 (3/16" Ctr.-to-Ctr.)—8" O'all Lg.	Plastic	Plastic Pouch	Steel	000000000	000000
4	Drilled Spanner Screw Remover for No. 6 (1/8" Ctr.-to-Ctr.)—8" O'all Lg. Drilled Spanner Screw Remover for No. 8 (5/32" Ctr.-to-Ctr.)—8" O'all Lg. Drilled Spanner Screw Remover for No. 10 (3/16" Ctr.-to-Ctr.)—8" O'all Lg. Drilled Spanner Screw Remover for No. 14 (7/32" Ctr.-to-Ctr.)—8" O'all Lg.	Plastic	Plastic Pouch	Steel	000000000	00000

Bit Screwdrivers

With Plain Grip

Insert a bit into the shaft and a magnet holds it in place.

Tamper-resistant hex are also known as pin-in-hex.

Tamper-resistant Torx are also known as pin-in-Torx.

			Shaft		Material
No. of Sizes	Sizes Included	O'all Lg.	Lg.	O'all Wd.	Shaft	Bit	Handle	Grip Style	Features		Each
For 1/4" Bit Hex Shank Size
26	Drilled Spanner: No. 4, No. 6, No. 8, No. 10 Tamper-Resistant Hex: 3/32", 7/64", 1/8", 9/64", 5/32", 3/16", 2mm, 2.5mm, 3mm, 5mm Tamper-Reistant Torx: T7, T8, T10, T15, T20, T25, T27, T30, T40 Torq Set®: No. 6, No. 8, No. 10	8 1/2"	3 3/8"	5/16"	Stainless Steel	Steel	Plastic	Plain	Bit storage inside tool	0000000	000000

Drilled Spanner Bits

Hex Shank

Hex Shank for Power Tools

Use with screws that have two drilled holes.

Hex shank bits (also known as insert bits) are used in hand drivers or with a bit adapter in power tools.

Hex shank bits for power tools have a groove in the shank and fit directly into power tools without an adapter. They offer more reach for recessed holes and less wobble compared to a hex shank bit used with an adapter.

1/4" Hex Shank Size
For Screw Size	For Hole Center-to-Center	Overall Lg.	Material		Each
No. 4	0.1"	1"	Steel	00000000	00000
No. 6	0.134"	1"	Steel	00000000	0000
No. 8	0.164"	1"	Steel	00000000	0000
No. 10	0.198"	1"	Steel	00000000	0000
No. 12	0.215"	1"	Steel	00000000	0000
No. 14, 1/4"	0.259"	1"	Steel	00000000	0000
1/4" Hex Shank Size for Power Tools
No. 4	0.108"	2"	Steel	0000000	0000
No. 6	0.162"	2"	Steel	0000000	0000
No. 8	0.186"	2"	Steel	0000000	0000
No. 10	0.209"	2"	Steel	0000000	0000
No. 12	0.223"	2"	Steel	0000000	0000
No. 14	0.259"	2"	Steel	0000000	0000
No. 16	0.373"	2"	Steel	0000000	0000
No. 18	0.49"	2"	Steel	0000000	0000
No. 20	0.508"	2"	Steel	0000000	0000
5/16" Hex Shank Size
No. 6	0.162"	1 1/4"	Steel	0000000	0000
No. 8	0.186"	1 1/4"	Steel	0000000	0000
No. 10	0.209"	1 1/4"	Steel	0000000	0000
No. 12	0.223"	1 1/4"	Steel	0000000	0000
No. 14, 1/4"	0.25"	1 1/2"	Steel	0000000	0000

Bit Assortments

These assortments contain general-purpose bits.

Hex shank bits (also known as insert bits) are used in hand drivers or with a bit adapter in power tools.


Hex	Tamper-Resistant Hex	Phillips	Slotted	Torx	Square
Drilled Spanner	Pozidriv®	Tamper-Resistant Torx	Torq-Set®	Tri-Wing®

1/4" Hex Shank Size—Steel
No. of Pieces	Components Included	Bits Included	Adapters Included	Drive Tools Included		Each
30	26 Bits 3 Adapters 1 Drive Tool	Drilled Spanner: No. 6, No. 8 No. 10 (1" O'all Lg.) Pozidriv®: No. 2 (1" O'all Lg.) Square: No. 1, No. 2 (1" O'all Lg.) Tamper-Resistant Hex: 3/32", 7/64", 1/8", 9/64" T25, T27, T30, T40 (1" O'all Lg.) 5/32", 3/16", 7/32", 1/4" (1" O'all Lg.) Tamper-Resistant Torx: T9, T10, T15, T20 Torq-Set®: No. 5, No. 8 (1" O'all Lg.) Tri-Wing®: No. 4, No. 5 (1" O'all Lg.)	1/8" Male Square Drive × 1/8" Hex Shank Adapter 1/4" Male Square Drive × 1/4" Hex Shank Adapter 2 1/8" Lg. Bit Adapter for Power Tools	8 3/4" Lg. Bit Screwdriver	000000	000000
39	36 Bits 2 Adapters 1 Drive Tool	Drilled Spanner: No. 4, No. 6, No. 8, No. 10 (1" O'all Lg.) Phillips: No. 1, No. 2 (1" O'all Lg.) Pozidriv®: No. 0, No. 1, No. 2, No. 3 (1" O'all Lg.) Slotted: 1/4", 5/16" (1" O'all Lg.) Square: No. 1, No. 2, No. 3 (1" O'all Lg.) T25, T27, T30, T40 (1" O'all Lg.) Tamper-Resistant Hex: 5/64", 3/32", 7/64" 1/8", 9/64", 5/32" (1" O'all Lg.) Tamper-Resistant Torx: T8, T10, T15, T20 Torq-Set®: No. 6, No. 8, No. 10 (1" O'all Lg.) Tri-Wing®: No. 1, No. 2, No. 3, No. 4 (1" O'all Lg.)	1/4" Female Square Drive × 1/4" Female Hex Adapter 2 1/4" Lg. Bit Adapter for Power Tools	Screwdriver Handle	0000000	00000
100	96 Bits 4 Adapters	Drilled Spanner: No. 4, No. 6, No. 8, No. 10 No. 12, 1/4" (1" O'all Lg.)—1 ea. Hex (Inch): 0.050", 1/16", 5/64", 3/32", 7/64" 1/8", 9/64", 5/32", 3/16", 7/32", 1/4" 5/16", 3/8" (1" O'all Lg.)—1 ea. Hex (Metric): 1.5 mm, 2 mm, 2.5 mm, 3 mm 4 mm, 5 mm, 6 mm, 7 mm, 8 mm (1" O'all Lg.)—1 ea. Phillips: No. 0 (1" O'all Lg.)—1 ea. Phillips: No. 1, No. 3 (1" O'all Lg.)—2 ea. Phillips: No. 2 (1" O'all Lg.)—4 ea. Pozidriv®: No. 1, No. 2, No. 3 (1" O'all Lg.)—1 ea. Screw-In Hook Driver Bit—1 ea. Slotted: 3/32", 1/8", 5/32", 3/16", 7/32", 1/4" 9/32", 5/16", 3/8" (1" O'all Lg.)—1 ea. Square: No. 0, No. 1, No. 2, No. 3, No. 4 (1" O'all Lg.)—1 ea. Tamper-Resistant Hex (Inch): 3/32" 7/64", 1/8", 9/64", 5/32", 3/16", 7/32" 1/4", 5/16" (1" O'all Lg.)—1 ea. Tamper-Resistant Hex (Metric): 2.5 mm, 3 mm 4 mm, 5 mm, 6 mm, 8 mm (1" O'all Lg.)—1 ea. Tamper-Resistant Torx: T6, T7, T8, T9, T10, T15 T20, T25, T27, T30, T40 (1" O'all Lg.)—1 ea. Torx: T5, T6, T7, T8, T9, T10, T15, T20, T25, T27 T30, T40, T45, T50, T55 (1" O'all Lg.)—1 ea.	1/4" Male Square Drive × 1/4" Hex Shank Adapter (1" O'all Lg.) 1/4" Male Square Drive × 1/4" Hex Shank Adapter (2" O'all Lg.) 2 1/2" Lg. Bit Adapter for Power Tools Bit Adapter for Square Drive Tools	__	000000	00000

Drilled Spanner Bit Sets

Hex Shank

Hex Shank for Power Tools

Use with screws that have two drilled holes.

Hex shank bits (also known as insert bits) are used in hand drivers or with a bit adapter in power tools.

1/4" Hex Shank Size
Components Included	Bits Included	Material	Container Type		Each
6 Bits	Drilled Spanner for 0.134" Ctr.-to-Ctr.: No. 6 (1" O'all Lg.)—2 ea. Drilled Spanner for 0.164" Ctr.-to-Ctr.: No. 8 (1" O'all Lg.)—2 ea. Drilled Spanner for 0.198" Ctr.-to-Ctr.: No. 10 (1" O'all Lg.)—2 ea.	Steel	__	00000000	000000
1/4" Hex Shank Size for Power Tools
4 Bits	Drilled Spanner for 0.108" Ctr.-to-Ctr.: No. 4 (2" O'all Lg.)—1 ea. Drilled Spanner for 0.162" Ctr.-to-Ctr.: No. 6 (2" O'all Lg.)—1 ea. Drilled Spanner for 0.186" Ctr.-to-Ctr.: No. 8 (2" O'all Lg.)—1 ea. Drilled Spanner for 0.209" Ctr.-to-Ctr.: No. 10 (2" O'all Lg.)—1 ea.	Steel	Plastic Pouch	0000000	00000
5/16" Hex Shank Size
7 Bits	Drilled Spanner for 0.162" Ctr.-to-Ctr.: No. 6 (1 1/4" O'all Lg.)—2 ea. Drilled Spanner for 0.186" Ctr.-to-Ctr.: No. 8 (1 1/4" O'all Lg.)—2 ea. Drilled Spanner for 0.209" Ctr.-to-Ctr.: No. 10 (1 1/4" O'all Lg.)—2 ea. Drilled Spanner for 0.223" Ctr.-to-Ctr.: No. 12 (1 1/4" O'all Lg.)—1 ea.	Steel	Plastic Pouch	0000000	00000