# US 2014/0196580 A1 · Multi-Bit Power Driver > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0196580 A1 - Document ID: US20140196580A1 - Status: Published application - Kind: A1 - Application number: 13/739,942 - Filed: 2013-01-11 - Published: 2014-07-17 - Earliest claimed: 2013-01-11 - Assignees: Klein Tools, Inc. - Inventors: Timothy L. Duitsman; Jonathan D. Ginsberg; Ismet M. Marinovic - Web page: https://patentgrep.com/patent/US20140196580A1 ## CPC - B25B 23/0035: {Connection means between socket or screwdriver bit and tool} - B25B 15/001: {characterised by material or shape of the tool bit} - B25B 23/0007: {Connections or joints between tool parts} - B25B 23/12: using magnetic means - B25B: TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING ## Abstract A tool having a main barrel with an inner cavity, a tool bit holder adapted to be removably secured within the inner cavity, the tool bit holder having a first inner cavity adapted for receiving a first reversible tool bit and a second inner cavity adapted to receive a non-reversible tool bit, wherein the inner cavity of the main barrel serves as a first sized nut driver, the first inner cavity of the tool bit holder serves as a second sized nut driver, and the second inner cavity of the tool bit holder serves as third sized nut driver, where first, second, and third sized nut drivers each have a different size. ## Claims ### Claim 1 A tool comprising: a main barrel with an inner cavity located on a first end of the barrel; a tool bit holder adapted to be removably secured within the inner cavity of the main barrel; the tool bit holder having a first inner cavity located on a first end of the tool bit holder, the first inner cavity adapted for receiving a first reversible tool bit; the tool bit holder having a second inner cavity located on a second end of the tool bit holder, the second cavity adapted to receive a non-reversible tool bit; wherein the inner cavity of the main barrel may serve as a first sized nut driver; wherein the first inner cavity of the tool bit holder may serve as a second sized nut driver; wherein the second inner cavity of the tool bit holder may serve as a third sized nut driver; and wherein the first sized nut driver, the second sized nut driver and the third sized nut driver each have a different size. ### Claim 2 (depends on 1) The tool of claim 1, wherein the second sized nut driver is larger than the third sized nut driver. ### Claim 3 (depends on 2) The tool of claim 2, wherein the second sized nut driver is a 5/16 inch size nut driver and the third sized nut driver is a ¼ inch nut driver. ### Claim 4 (depends on 3) The tool of claim 3, wherein the first sized nut driver is 9/16 inch or larger. ### Claim 5 (depends on 1) The tool of claim 1, wherein an outer surface of the main barrel serves as a gripping handle. ### Claim 6 (depends on 1) The tool of claim 1, wherein a shank extends from a second end of the main barrel, where the shank is adapted to be received in a chuck of a rotary power tool. ### Claim 7 (depends on 2) The tool of claim 2, wherein the third sized nut driver is a ¼ inch nut driver. ### Claim 8 (depends on 1) The tool of claim 1, wherein the second inner cavity of the tool bit holder has a magnet positioned in a base thereof, where the magnet is adapted to engage and removably secure the first non-reversible tool bit within the second inner cavity. ### Claim 9 (depends on 8) The tool of claim 8, wherein the first non-reversible tool bit has a flat base that is adapted to contact a corresponding flat surface on the magnet positioned in the base of the second inner cavity of the tool bit holder. ### Claim 10 (depends on 3) The tool of claim 3, wherein the first sized nut driver is a 9/16 inch nut driver. ### Claim 11 (depends on 2) The tool of claim 2, wherein the tool bit holder has a ball and detent on an outer surface thereof. ### Claim 12 (depends on 11) The tool of claim 11, wherein an inner surface of the main barrel has a groove adapted to receive the ball of the tool bit holder. ### Claim 13 (depends on 12) The tool of claim 12, wherein the groove on the inner surface of the main barrel has a depth of 0.019 to 0.020 inches and surfaces extending at an angle of between 145 to 150 degrees. ### Claim 14 (depends on 3) The tool of claim 3, wherein the second sized nut driver has a wall thickness that is at least 0.038 inches. ### Claim 15 (depends on 2) The tool of claim 2, wherein the first reversible bit has one end that is first sized Phillips head driver, and the non-reversible bit has an end that is a second sized Phillips head driver that is smaller than the first sized Phillips head driver. ### Claim 16 A tool comprising: a main barrel with an inner cavity located on a first end of the barrel; a tool bit holder adapted to be removably secured within the inner cavity of the main barrel; the tool bit holder having a first inner cavity located on a first end of the tool bit holder, the first inner cavity adapted for receiving a first reversible tool bit; the tool bit holder having a second inner cavity located on a second end of the tool bit holder, the second cavity adapted to receive a non-reversible tool bit; wherein the inner cavity of the main barrel may serve as a first sized nut driver of 9/16 inches or greater; wherein the first inner cavity of the tool bit holder may serve as a second sized nut driver, wherein the second inner cavity of the tool bit holder may serve as a third sized nut driver of ¼ inch size; and wherein the second sized nut driver is smaller than the first sized nut driver and bigger than the third sized nut driver. ### Claim 17 (depends on 16) The tool of claim 16, wherein the second sized nut driver is a 5/16 inch size nut driver. ### Claim 18 (depends on 16) The tool of claim 16, wherein the second sized nut driver has a wall thickness that is at least 0.038 inches. ### Claim 19 (depends on 1) The tool of claim 1, wherein the tool bit holder has a hardness of 44-48 HRC inclusive. ### Claim 20 (depends on 19) The tool of claim 19, wherein the tool bit holder is comprised of 4140 steel. ### Claim 21 (depends on 16) The tool of claim 16, wherein the tool bit holder a hardness of 44-48 HRC. ### Claim 22 (depends on 21) The tool of claim 21, wherein the tool bit holder is comprised of 4140 steel. ### Claim 23 (depends on 16) The tool of claim 16, wherein the second inner cavity of the tool bit holder has a magnet positioned in a base thereof, where the magnet is adapted to engage and removably secure the first non-reversible tool bit within the second inner cavity. ### Claim 24 A tool comprising: a main barrel with an inner cavity located on a first end of the barrel; a tool bit holder adapted to be removably secured within the inner cavity of the main barrel; the tool bit holder having a first inner cavity located on a first end of the tool bit holder, the first inner cavity adapted for receiving a first reversible tool bit; the tool bit holder having a second inner cavity located on a second end of the tool bit holder, the second cavity adapted to receive a non-reversible tool bit; wherein the inner cavity of the main barrel may serve as a first sized nut driver of ⅜ inches or greater; wherein the first inner cavity of the tool bit holder may serve as a second sized nut driver, wherein the second inner cavity of the tool bit holder may serve as a third sized nut driver. ### Claim 25 (depends on 24) The tool of claim 24, wherein the second sized nut driver is the same size as the third sized nut driver. ### Claim 26 (depends on 25) The tool of claim 25, wherein the second sized nut driver is a ¼ inch nut driver and the third sized nut driver is a ¼ inch nut driver. ### Claim 27 (depends on 26) The tool of claim 26, wherein the first sized nut driver is a ⅜ inch sized nut driver. ### Claim 28 (depends on 24) The tool of claim 24, wherein the tool bit holder has a ball and detent on an outer surface thereof. ### Claim 29 (depends on 28) The tool of claim 28, wherein an inner surface of the main barrel has a groove adapted to receive the ball of the tool bit holder. ### Claim 30 (depends on 29) The tool of claim 29, wherein the groove on the inner surface of the main barrel has a depth of 0.019 to 0.020 inches and surfaces extending at an angle of between 140 to 155 degrees. ### Claim 31 (depends on 30) The tool of claim 30, wherein the angle is 145 to 147 degrees. ### Claim 32 (depends on 26) The tool of claim 26, wherein the tool bit holder has a hardness of 44-48 HRC inclusive. ### Claim 33 (depends on 32) The tool of claim 32, wherein the tool bit holder is comprised of 8650 steel. ### Claim 34 (depends on 24) The tool of claim 24, wherein an inner surface of the first end of the tool bit holder has a groove adapted to receive a ball positioned on the reversible bit. ### Claim 35 (depends on 34) The tool of claim 34, wherein the groove on the inner surface of the main barrel has a depth of 0.018 to 0.020 inches and surfaces extending at an angle of between 140 to 155 degrees. ### Claim 36 (depends on 35) The tool of claim 35, wherein the angle is 145 to 147 degrees. ### Claim 37 (depends on 35) The tool of claim 35, wherein the second sized nut driver on the tool bit holder has a wall thickness that is at least 0.038 inches. ### Claim 38 (depends on 24) The tool of claim 24, wherein the second inner cavity of the tool bit holder has a magnet positioned in a base thereof, where the magnet is adapted to engage and removably retain the first non-reversible tool bit within the second inner cavity.