Over on the main ToolGuyd site there was a post about preferences for using dedicated screwdrivers versus bit-holder style drivers. It got me thinking about the myriad of bit and bit-holder styles that are available - compared to single-purpose drivers.
I looked at an old inventory and came up with this list of 1/4 hex dive bits that we had at the time of the inventory. I did a quick compaction to eliminate duplicates - but may not have gotten them all - nor can I claim that the manufacturers and/or their part numbers still exist
COMPANY PART_NO UPC_EAN SIZE
4- HOLE SPANNER BITS
EAZYPOWER 30541 083771305413 3/32 INCH DIA.
EAZYPOWER 30542 083771305420 1/8 INCH DIA
EAZYPOWER 30543 083771305437 7/32 INCH DIA.
B.N.A.E. (FRENCH RECESS) BITS
APEX 00761 697099007616 3 MM
APEX 00762 697099007623 4 MM
APEX 00764 697099007647 5 MM
APEX 00767 697099007678 6 MM
APEX 00769 697099007692 8 MM
CAMO HIDDEN FASTENER BITS
CAMO - PROFIT 345089 042928156735 3 INCH GROOVED
CAMO - PROFIT 345099 042928154120 3 INCH PLAIN
CLUTCH-HEAD BITS
VEGA INDUSTRIES INC. 125CG332A 3/32 INCH
VEGA INDUSTRIES INC. 125CG432A 1/8 INCH
VEGA INDUSTRIES INC. 125CG532A 5/32 INCH
VEGA INDUSTRIES INC. 125CG632A 3/16 INCH
VEGA INDUSTRIES INC. 125CG832A 1/4 INCH
D-SHAPE BIT
MOTION PRO 08-0242 1/4 INCH
ECX (TERMINAL BLOCK) BIT
MILWAUKEE 48-32-4491 045242238830 No.1 2 INCH LNG
MILWAUKEE 48-32-4492 045242238347 No.2 2 INCH LNG
HEX BITS - METRIC
EAZYPOWER 79841 - 071 083771798413 0.71 MM
EAZYPOWER 79841 - 089 083771798413 0.89 MM
EAZYPOWER 79841 - 127 083771798413 1.27 MM
EAZYPOWER 79841 - 150 083771798413 1.5 MM
EAZYPOWER 79841 - 200 083771798413 2 MM
EAZYPOWER 79841 - 250 083771798413 2.5 MM
EAZYPOWER 79841 - 300 083771798413 3 MM
WIHA 71312 084705713120 4 MM
EAZYPOWER 79841 - 500 083771798413 5 MM
EAZYPOWER 79841 - 600 083771798413 6 MM
TECHNI-TOOL 758SC0219 7 MM
HEX BITS - METRIC - BALL-END
BONDHUS 11052 037231110529 2 MM
BONDHUS 11054 037231110543 2.5 MM
BONDHUS 11056 037231110567 3 MM
BONDHUS 11060 037231110604 4 MM
BONDHUS 11064 037231110648 5 MM
BONDHUS 11068 037231110680 6 MM
BONDHUS 11072 037231110727 8 MM
BONDHUS 11076 037231110765 10 MM
BONDHUS 11080 037231110802 12 MM
HEX PLUS BITS - METRIC
WERA 056303 4013288012623 1.5 MM
WERA 056305 4013288012630 2 MM
WERA 056310 4013288012647 2.5 MM
WERA 056315 4013288012654 3 MM
WERA 056320 4013288012661 4 MM
WERA 056325 4013288012678 5 MM
WERA 056330 4013288012685 6 MM
WERA 056332 4013288038173 7 MM
WERA 056336 4013288012692 8 MM
WERA 056340 4013288012708 10 MM
HEX SECURITY BITS - METRIC
EAZYPOWER 77100-01.5 083771771003 1.5 MM
EAZYPOWER 77100-02.0 083771771003 2 MM
EAZYPOWER 77100-02.5 083771771003 2.5 MM
EAZYPOWER 77100-03.0 083771771003 3 MM
EAZYPOWER 77100-04.0 083771771003 4 MM
EAZYPOWER 77100-05.0 083771771003 5 MM
EAZYPOWER 77100-06.0 083771771003 6 MM
EAZYPOWER 77100-08.0 083771771003 8 MM
EAZYPOWER 77100-10.0 083771771003 10 MM
EAZYPOWER 77100-12.0 083771771003 12 MM
HEX BITS - FRACTIONAL
WIHA 71326 084705713267 1/16 INCH
DELTA REGIS TOOLS INC. DR91-41002 5/64 INCH
KC PROFESSIONAL 97235-A3/32 3/32 INCH
KC PROFESSIONAL 97235-A7/64 7/64 INCH
KC PROFESSIONAL 97235-A1/8 1/8 INCH
KC PROFESSIONAL 97235-A9/64 9/64 INCH
KC PROFESSIONAL 97235-A5/32 5/32 INCH
MILWAUKEE 48-32-4707 045242344086 3/16 INCH
WIHA 71348 084705713489 7/32 INCH
WIHA 71351 084705713519 1/4 INCH
WIHA 71356 084705713564 3/8 INCH
HEX PLUS BITS - FRACTIONAL
WERA 135060 4013288106636 0.05 INCH
WERA 135070 4013288040862 1/16 INCH
WERA 135071 4013288040879 5/64 INCH
WERA 135072 4013288037725 3/32 INCH
WERA 135078 4013288036599 7/64 INCH
WERA 135073 4013288038067 1/8 INCH
WERA 135069 4013288040855 9/64 INCH
WERA 135074 4013288036506 5/32 INCH
WERA 135075 4013288037930 3/16 INCH
WERA 135079 4013288040893 7/32 INCH
WERA 135076 4013288040886 1/4 INCH
WERA 135077 4013288036360 5/16 INCH
WERA 135068 4013288040848 3/8 INCH
HEX SECURITY BITS - FRACTIONAL
WIHA 71930 084705719306 5/64 INCH
ITM TR-100-30-3/32 3/32 INCH
WIHA 71934 084705919344 7/64 INCH
ITM TR-100-30-1/8 1/8 INCH
ITM TR-100-30-9/64 9/64 INCH
ITM TR-100-30-5/32 5/32 INCH
ITM TR-100-30-3/16 3/16 INCH
ITM TR-100-30-7/32 7/32 INCH
ITM TR-100-30-1/4 1/4 INCH
ITM TR-100-30-5/16 5/16 INCH
MCMASTER-CARR 7257A31 3/8 INCH
HOOK & EYE DRIVER BITS
FESTOOL 492526 4014549034378 1 INCH MAX.
CRAFTSMAN 9-25754 714994257547 1 INCH MAX.
JIS CROSS-POINT BITS
VESSEL CO. INC. 8999 - 00 No.00
VESSEL CO. INC. 8999 - 0 No.0
VESSEL CO. INC. 8999 - 1 No.1
LAGSCREW BITS
EAZYPOWER 90919 083771909192 1/4 INCH THREAD
EAZYPOWER 90920 083771909208 5/16 INCH THREAD
CONVENIENCE CONCEPTS INC. 5050 095285050505 2.5 INCH
LINEHEAD EXTERNAL BITS
TECHNI-TOOL 758TT001-LHSALH2 No.2
TECHNI-TOOL 758TT001-LHSALH3 No.3
TECHNI-TOOL 758TT001-LHSALH4 No.4
TECHNI-TOOL 758TT001-LSHALH5 No.5
TECHNI-TOOL 758TT001-LHSALH6 No.6
TECHNI-TOOL 758TT001-LHSALH8 No.8
LINEHEAD INTERNAL BITS
TECHNI-TOOL 758TT003-LHSALR2 No.2
TECHNI-TOOL 758TT003-LHSALR3 No.3
TECHNI-TOOL 758TT003-LHSALR4 No.4
TECHNI-TOOL 758TT003-LHSALR5 No.5
TECHNI-TOOL 758TT003-LSHALR6 No.6
LINEHEAD INTERNAL SECURITY BITS
TECHNI-TOOL 758TT002-LHSALR3 No.3T
TECHNI-TOOL 758TT002-LHSALR4 No.4T
TECHNI-TOOL 758TT002-LHSALR5 No.5T
TECHNI-TOOL 758TT002-LSHALR6 No.6T
LOX BITS
HITACHI POWER TOOLS USA LTD. 725452 754005254523 No.2 2IN. LONG
GRABBER CONSTRUCTION PRODUCTS 3002L No.2 3 IN. LONG
HITACHI POWER TOOLS USA LTD. 725454 754005254547 No.2 3IN. LONG
HITACHI POWER TOOLS USA LTD. 725441 754005254417 No.2 5IN. LONG
GRABBER CONSTRUCTION PRODUCTS 2160LNS No.2 6IN. LONG
GRABBER CONSTRUCTION PRODUCTS 202L2S No.2 8IN. LONG
GRABBER CONSTRUCTION PRODUCTS 300L3 No.3 3 IN. LONG
HITACHI POWER TOOLS USA LTD. 725443 754005254431 No.3 7IN. LONG
GRABBER CONSTRUCTION PRODUCTS 202L3S No.3 8IN. LONG
GRABBER CONSTRUCTION PRODUCTS 227L3S No.3 9IN. LONG
INTERNAL 12-POINT SPLINE (XZN) BITS
WERA 860/1 M 04 2050000315486 4 MM
WERA 860/1 M 05 2050000315480 5 MM
WERA 860/1 M 06 2050000315503 6 MM
WERA 860/1 M 08 2050000315527 8 MM
WERA 860/1 M 10 2050000406652 10 MM
WERA 860/4 M 12 4013288034946 12 MM
MOR-TORQ BITS
SNAP-ON SDMMT00 MT-00
SNAP-ON SDMMT0 MT-0
APEX 440-MT-1 697099625858 MT-1
APEX 440-MT-2 697099625865 MT-2
ONE-WAY SECURITY BITS
EAZYPOWER 88243 083771882433 No.06
EAZYPOWER 88244 083771882440 No.08
EAZYPOWER 88245 083771882457 No.10
EAZYPOWER 88246 083771882464 No.12
EAZYPOWER 88247 083771882471 No.14
EAZYPOWER 81395 083771883956 No.16
EAZYPOWER 88256 083771882563 No.18
OVAL SCREW HEAD BITS
COMPEVE RTKU001 785306617823 3.7 MM OVAL
EAZYPOWER 88249 083771882495 0.290 INCH
EAZYPOWER 87837 083771878375 0.360 INCH
PENTAGON BITS
EAZYPOWER 80419 083771804190 No.6-8
EAZYPOWER 80420 083771804206 No.8-10
PHILLIPS BITS
WIHA 71100 084705711003 No.0
DEWALT DW2001 028874020016 No.1
DEWALT DW2002 028874020030 No.2
DEWALT DW2003 028874020030 No.3
PHILLIPS ACR BITS
WERA 853/1TZ - PH1 4013288014399 No.1
WERA 853/1TZ - PH2 4013288014405 No.2
WERA 853/1TZ - PH3 4013288014412 No.3
PHILLIPS IMPACT BITS
DEWALT DW2001IR 885911026499 No.1
DEWALT DW2002IR 885911026505 No.2
DEWALT DW2003IR 885911026512 No.3
PHILLIPS SECURITY BITS
EAZYPOWER 79945 - 1 083771799458 No.1
EAZYPOWER 90509 083771905095 No.2
EAZYPOWER 90510 083771905101 No.3
EAZYPOWER 79945 - 4 083771799458 No.4
PHILLIPS II BITS
PHILLIPS FASTENER PRODUCTS 80201 615520802012 No.1
PHILLIPS FASTENER PRODUCTS 80105 615520801053 No.2
PHILLIPS FASTENER PRODUCTS 80302 (#2) 615520803026 No.3 2 INCH LNG
POZIDRIV BITS
WIHA 71200 084705712000 No.0
WERA 856/1TZ - PZ1 4013288015570 No.1
WERA 856/1TZ - PZ2 4013288015587 No.2
WERA 856/1TZ - PZ3 4013288015594 No.3
TECHNI-TOOL 758SC0219 No.4 2 INCH LNG
QUADREX BITS
APEX 950-QD-2 697099308072 QD-2
REED & PRINCE (FREARSON) BITS
MCMASTER-CARR 52785A25 No.1 1 INCH
APEX 491-FX 697099282709 No.1 2 INCH
APEX 492-FX 697099283546 No.2 2 INCH
APEX 493-FX 697099284062 No.3 2 INCH
ROBERTSON (SQUARE) BITS
WERA 868/1 #00 4013288030214 No.00
DISSTON 4956-0 035781142274 No.0
DEWALT DW2201 028874022010 No.1
DEWALT DW2202 028874022027 No.2
MILWAUKEE 48-32-4423 045242198931 No.3
WERA 868/1 #4 4013288030252 No.4
ROBERTSON (SQUARE) IMPACT BITS
DEWALT DWA1SQ1IR 885911344616 No.1
DEWALT DWA1SQ2IR 885911344623 No.2
DEWALT DWA1SQ3IR 885911364683 No.3
ROBERTSON (SQUARE) SECURITY BITS
EAZYPOWER 20408 083771204082 No.1
EAZYPOWER 20409 083771204099 No.2
EAZYPOWER 20410 083771204105 No.3
EAZYPOWER 20411 083771204112 No.4
ROUND BIT
HIGHPOINT 159050 - RND 844788022454 1.5 MM
SEL-O-FIT BITS
APEX 491-SFX 697099282785 No.1
APEX 440-2-SFX 697099275701 No.2
APEX 440-3-SFX 697099276265 No.3
SPANNER (TWIN POINT) BITS
WIHA 71914 084705719146 No.4
EAZYPOWER 90512 083771905125 No.6
EAZYPOWER 90513 083771905132 No.8
EAZYPOWER 90514 083771905149 No.10
EAZYPOWER 90515 083771905156 No.12
EAZYPOWER 90516 083771905163 No.14
EAZYPOWER 86010 083771860103 No.16
EAZYPOWER 86011 083771860110 No.18
SPIDER DRIVE (8 POINT SPLINE) BIT
FASTEN MASTER SD3L 608309411215 No.3
SPIDER DRIVE (8 POINT SPLINE) SECURITY BIT
EAZYPOWER 80850 083771508500 5/32 INCH
TREADED INSER DRIVER BITS
E-Z LOK 500-0 6-32
MCFEELY’S 3603-PD 8-32
MCFEELY’S 3604-PD 10-24
MCFEELY’S 3606-PD 1/4-20
MCFEELY’S 3607-PD 5/16-18
T-NUT DRIVER BIT
INSTY BIT 87006 019366870066 1/4-20 2IN LNG
TORQ-SET BITS
APEX 212-0 697099234074 TS-0
PROTO 6224 662679562243 TS-01
AMERICAN TOOL CO.s OF ARKANSAS 92232 673765922322 TS-02
EAZYPOWER 73288 - 03 083771732882 TS-03
AMERICAN TOOL CO.s OF ARKANSAS 92234 673765922346 TS-04
EAZYPOWER 73288 - 05 083771732882 TS-05
EAZYPOWER 73288 - 06 083771732882 TS-06
EAZYPOWER 13296 083771132965 TS-07
EAZYPOWER 90517 083771905170 TS-08
EAZYPOWER 90518 083771905187 TS-09
EAZYPOWER 90519 083771905194 TS-10
WERA 871/1 1/4 4013288033154 TS-1/4
WERA 871/1 5/16 4013288093011 TS-5/16
TORX BITS
TECHNI-TOOL 758SC0271 T-3
TECHNI-TOOL 758SC0272 T-4
WIHA 71505 084705715056 T-5
DRILL MASTER 93316 - 2 792363933162 T-5.5
WIHA 71506 084705715063 T-6
WIHA 71507 084705715070 T-7
WIHA 71553 084705715537 T-8
DRILL MASTER 93316 - 6 792363933162 T-9
WIHA 71555 084705715551 T-10
MILWAUKEE 48-32-4134 045242331284 T-15
MILWAUKEE 48-32-4414 045242302413 T-20
DEWALT DW2625 028874026254 T-25
KC PROFESSIONAL 97235-T27 T-27
WIHA 71560 084705715605 T-30
EAZYPOWER 12217 083771122171 T-35
KC PROFESSIONAL 97235-T40 T-40
WERA 867/1 TX45 4013288031174 T-45
EAZYPOWER 73229 083771732295 T-55 2 INCH LNG
EAZYPOWER 77244 083771772444 T-60 2 INCH LNG
TORX IMPACT BITS
DEWALT DWA1TX15IRB 885911341103 T15
DEWALT DWA1TX20IRB 885911341110 T20
DEWALT DWA1TX25IRB 885911341127 T25
DEWALT DWA1TX27IRB 885911341134 T27
IRWIN 1837505 673765170655 T30 2 INCH LNG
IRWIN 1837508 673765170686 T40 2 INCH LNG
TORX SECURITY BITS
EAZYPOWER 20747 083771207472 T-6 2 INCH LNG
DELTA REGIS TOOLS INC. DR91-60-TR7 T-7
ITM TR-100-30-T8 T-8
ITM TR-100-30-T9 T-9
ITM TR-100-30-T10 T-10
ITM TR-100-30-T15 T-15
ITM TR-100-30-T20 T-20
APEX 440-TX25H 6970992749002 T-25
ITM TR-100-30-T27 T-27
ITM TR-100-30-T30 T-30
EAZYPOWER 13247 083771132477 T-35
ITM TR-100-30-T40 T-40
EAZYPOWER 13261 083771132613 T-45 2 INCH LNG
EAZYPOWER 85155 083771851552 T-47 2 INCH LNG
EAZYPOWER 73262 083771732622 T-50 2 INCH LNG
EAZYPOWER 73263 083771732639 T-55 2 INCH LNG
EAZYPOWER 85157 083771851576 T-60 2 INCH LNG
TORX ALIGN BITS
WIHA 71541 084705715414 TA-10
WIHA 71542 084705715421 TA-15
WIHA 71543 084705715438 TA-20
WIHA 71544 084705715445 TA-25
WIHA 71545 084705715452 TA-27
WIHA 71546 084705715469 TA-30
WIHA 71547 084705715476 TA-40
TORX PENTALOBE SECURITY BIT SET
SILVERHILL ATK57 - 1 812233010370 T5S-8
SILVERHILL ATK57 - 2 812233010370 T5S-10
SILVERHILL ATK57 - 3 812233010370 T5S-15
SILVERHILL ATK57 - 4 812233010370 T5S-20
SILVERHILL ATK57 - 5 812233010370 T5S-25
SILVERHILL ATK57 - 6 812233010370 T5S-27
SILVERHILL ATK57 - 7 812233010370 T5S-30
SILVERHILL ATK57 - 8 812233010370 T5S-40
TORX PLUS BITS
WERA 134668 4013288106568 TP-03
WERA 134691 4013288037220 TP-04
WERA 867/1 5IP 4013288030405 TP-05
WIHA 71606 084705716060 TP-06
WIHA 71607 084705716077 TP-07
WIHA 71608 084705716084 TP-08
WIHA 71609 084705716091 TP-09
WIHA 71610 084705716107 TP-10
WIHA 71615 084705716152 TP-15
WIHA 71620 084705716206 TP-20
WIHA 71625 084705716251 TP-25
WIHA 71627 084705716275 TP-27
WIHA 71630 084705716305 TP-30
WIHA 71640 084705716404 TP-40
TORX PLUS SECURITY BITS
WIHA 71648 084705716480 TP-08
WIHA 71650 084705716503 TP-10
WIHA 71652 084705716527 TP-15
WIHA 71654 084705716541 TP-20
WIHA 71656 084705716565 TP-25
WIHA 71657 084705716572 TP-27
WIHA 71658 084705716589 TP-30
TRIANGULAR RECESS BITS
MCMASTER-CARR 5941A11 TR-18
MCMASTER-CARR 5941A12 TR-20
MCMASTER-CARR 5941A13 TR-23
MCMASTER-CARR 5941A14 TR-27
TR-BLADE (TRI-WING) BITS
EAZYPOWER 88609 083771886097 No.000
EAZYPOWER 88605 083771886059 No.00
PROTO 6240 662679562403 No.0
ITM TR-100-30-TB1 No.1
ITM TR-100-30-TB2 No.2
ITM TR-100-30-TB3 No.3
WIHA 71904 084705719047 No.4
PROTO 6245 662679562458 No.5
WERA 875/1 6 4013288033536 No.6
WERA 875/1 7 4013288033543 No.7
WERA 875/1 8 4013288033550 No.8
UNIDRIVE BITS
PHILLIPS FASTENER PRODUCTS 81001 615520810017 No.2
PHILLIPS FASTENER PRODUCTS 50022 615520500222 No.2 2 INCH LNG
WING NUT BIT
HURRICANE HARDWARE 707322 008236857054 2.5 INCH LONG
WIRE NUT DRIVER BIT
IDEAL 30-902 783250309023 3 INCH LONG