No. 19 Wrenches | McMaster-Carr

A spline-shaped box end turns spline, hex, and 12-point fasteners with minimal effort. This shape also gets a better grip on rounded fasteners that can be difficult to turn with a traditional wrench. These wrenches have a ratchet mechanism that allows you to turn fasteners in tight spaces without removing and repositioning. Flip over to ratchet in the opposite direction. Wrenches are polished for a mirror-like finish.

For technical drawings and 3-D models, click on a part number.

Box End					Open End
External Hex/12-Point Drive Size	External Spline Drive Size	Head Offset Angle	Head Thick.	Turn Required to Ratchet	External Hex/Square/12-Point Drive Size	Opening Angle	Head Thick.	Overall Lg.	Material	Appearance		Each
Metric
19 mm	No. 19	15°	7/16"	5°	19 mm	15°	11/32"	11 1/64"	Chrome-Plated Steel	Polished	0000000	000000

Spline Ratcheting Combination Wrench Sets

A spline-shaped box end turns spline, hex, and 12-point fasteners. This shape also gets a better grip on rounded fasteners that can be difficult to turn with a traditional wrench. These wrenches have a ratchet mechanism that allows you to turn fasteners in tight spaces without removing and repositioning the tool. Wrenches are polished for a mirror-like finish.

For technical drawings and 3-D models, click on a part number.

Box End				Open End
External Hex/12-Point Size	External Spline Size	Head Offset Angle	Turn Required to Ratchet	External 12-Point Size	Opening Angle	Overall Lg.	Material	Container Type		Each
Metric Wrench Sets
14-Piece Sets
6 mm 7 mm 8 mm 9 mm 10 mm 11 mm 12 mm 13 mm 14 mm 15 mm 16 mm 17 mm 18 mm 19 mm	No. 6 No. 7 No. 8 No. 9 No. 10 No. 11 No. 12 No. 13 No. 14 No. 15 No. 16 No. 17 No. 18 No. 19	15°	5°	6 mm 7 mm 8 mm 9 mm 10 mm 11 mm 12 mm 13 mm 14 mm 15 mm 16 mm 17 mm 18 mm 19 mm	15°	4 15/16"-11 1/16"	Chrome-Plated Steel	Plastic Roll-Up Pouch	0000000	0000000