cobalt drill

Showing 1–50 of 3094 results

Read more

YG-1 0.3110 Dia. 135 Cobalt TiN Straight Shank Jobber Non-Coolant Thru Drill

YG-1 0.3110 Dia. 135 Cobalt TiN Straight Shank Jobber Non-Coolant Thru Drill

7.9 HSS-Co5% JOBBERS LENGTH STRAIGHT SHANK GOLD-P DRILLS

SKU: DLGP195079 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: automotive, cobalt drill, construction, drill, general, holemaking, hss drill, job shop, jobber
Read more

Link 0.2010 Dia. 90 HSS Center Drill

Link 0.2010 Dia. 90 HSS Center Drill

UA7-U7-90 DEGREE TYPE HSS CENTERDRILL

SKU: 30-90-204 Categories: Center/ Spot Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: center drill, cobalt drill, holemaking, hss drill, job shop, spot drill
Read more

YG-1 1.0240 Dia. 135 Cobalt TiN Split Point Screw Machine Non-Coolant Thru Drill

YG-1 1.0240 Dia. 135 Cobalt TiN Split Point Screw Machine Non-Coolant Thru Drill

26 HSS(M42) STUB LENGTH DIN1897 SPLIT POINT DRILLS TIN COATED

SKU: D4107260 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: cobalt drill, construction, drill, general, holemaking, hss drill, stub
Read more

YG-1 0.6496 Dia. 135 Cobalt TiN Split Point Screw Machine Non-Coolant Thru Drill

YG-1 0.6496 Dia. 135 Cobalt TiN Split Point Screw Machine Non-Coolant Thru Drill

16.5 HSS(M42) STUB LENGTH DIN1897 SPLIT POINT DRILLS TIN COATED

SKU: D4107165 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: cobalt drill, construction, drill, general, holemaking, hss drill, stub
Read more

YG-1 0.4062 Dia. 135 Cobalt TiN Screw Machine Non-Coolant Thru Drill

YG-1 0.4062 Dia. 135 Cobalt TiN Screw Machine Non-Coolant Thru Drill

13/32 HSS(M42) SCREW MACHINE DRILL TIN COATED

SKU: D4146026 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: cobalt drill, construction, drill, general, holemaking, hss drill, screw
Read more

YG-1 0.2660 Dia. 135 HSS Split Point Aircraft Non-Coolant Thru Drill

YG-1 0.2660 Dia. 135 HSS Split Point Aircraft Non-Coolant Thru Drill

H HSS 12″ AIRCRAFT EXTENSION DRILL 135 DEGREE SPLIT POINT STEAM HOMO

SKU: D1635108 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: aircraft, cobalt drill, construction, drill, energy mfg, general, holemaking, hss drill, job shop, mold/die
Read more

YG-1 0.1673 Dia. 135 Cobalt TiN Split Point Screw Machine Non-Coolant Thru Drill

YG-1 0.1673 Dia. 135 Cobalt TiN Split Point Screw Machine Non-Coolant Thru Drill

4.25 HSS(M42) STUB LENGTH DIN1897 SPLIT POINT DRILLS TIN COATED

SKU: D4107942 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: cobalt drill, construction, drill, general, holemaking, hss drill, stub
Read more

Link 0.1820 Dia. 82 HSS Bright Center Drill

Link 0.1820 Dia. 82 HSS Bright Center Drill

145S4 TYPE DED HSS CENTERDRILL

SKU: 15-L2-081 Categories: Center/ Spot Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: center drill, cobalt drill, holemaking, hss drill, job shop, spot drill
Read more

YG-1 0.4375 Dia. 135 Cobalt Bright Screw Machine Non-Coolant Thru Drill

YG-1 0.4375 Dia. 135 Cobalt Bright Screw Machine Non-Coolant Thru Drill

7/16 HSS(M42) SCREW MACHINE DRILL

SKU: D2146028 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: cobalt drill, construction, drill, general, holemaking, hss drill, screw
Read more

YG-1 0.2677 Dia. 130 TiN Stub Non-Coolant Thru Drill

YG-1 0.2677 Dia. 130 TiN Stub Non-Coolant Thru Drill

6.8MM HSS-EX HPD-SUS TWIST DRILL TiN-COATED (STUB)

SKU: 0681JCN Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: cobalt drill, construction, drill, general, holemaking, hss drill, stub
Read more

Link 0.1820 Dia. 82 HSS Bright Center Drill

Link 0.1820 Dia. 82 HSS Bright Center Drill

14S TYPE DED HSS CENTERDRILL

SKU: 15-L2-050 Categories: Center/ Spot Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: center drill, cobalt drill, holemaking, hss drill, job shop, spot drill
Read more

YG-1 0.1094 Dia. 60 HSS Bright Center Non-Coolant Thru Drill

YG-1 0.1094 Dia. 60 HSS Bright Center Non-Coolant Thru Drill

7/64 HSS(M2) 60 DEGREE REGULAR LENGTH CENTER DRILL

SKU: D1C90143 Categories: Center/ Spot Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: aerospace, agriculture, automotive, center drill, cobalt drill, energy mfg, holemaking, hss drill, job shop, medical, mold/die, multi spindle, spot drill, standard
Read more

Link 0.1850 Dia. 120 HSS Bright LH Center Drill

Link 0.1850 Dia. 120 HSS Bright LH Center Drill

13B TYPE LH DED HSS CENTERDRILL

SKU: 11-L2-139 Categories: Center/ Spot Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: center drill, cobalt drill, holemaking, hss drill, job shop, spot drill
Read more

YG-1 0.3386 Dia. 135 Cobalt TiN Split Point Screw Machine Non-Coolant Thru Drill

YG-1 0.3386 Dia. 135 Cobalt TiN Split Point Screw Machine Non-Coolant Thru Drill

8.6 HSS(M42) STUB LENGTH DIN1897 SPLIT POINT DRILLS TIN COATED

SKU: D4107086 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: cobalt drill, construction, drill, general, holemaking, hss drill, stub
Read more

Link 0.7500 Dia. 90 HSS Bright Spot Drill

Link 0.7500 Dia. 90 HSS Bright Spot Drill

UA7-3/4 90D HSS SPOT DRILL

SKU: 63-L2-424 Categories: Center/ Spot Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: center drill, cobalt drill, holemaking, hss drill, job shop, spot drill
Read more

YG-1 0.1250 Dia. 90 Bright Standard Non-Coolant Thru Drill

YG-1 0.1250 Dia. 90 Bright Standard Non-Coolant Thru Drill

STEEL UP TO 35HRc/STAINLESS/COPPER

SKU: 0081L Categories: Center/ Spot Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: center drill, cobalt drill, construction, holemaking, hss drill, spot drill, standard
Read more

Link 0.2090 Dia. Cobalt TiN Center Drill

Link 0.2090 Dia. Cobalt TiN Center Drill

4R TYPE DED COBALT CENTERDRILL, TiN COAT

SKU: CO-TN-005 Categories: Center/ Spot Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: center drill, cobalt drill, holemaking, hss drill, job shop, spot drill
Read more

YG-1 0.1160 Dia. 130 Cobalt TiN Jobber Non-Coolant Thru Drill

YG-1 0.1160 Dia. 130 Cobalt TiN Jobber Non-Coolant Thru Drill

#32 HSS(M35) JOBBER, WORM PATTERN TYPE SS GOLD-P DRILL FOR DEEP HOLES

SKU: DLGP512216 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: automotive, cobalt drill, construction, drill, general, holemaking, hss drill, job shop, jobber
Read more

Link 0.1850 Dia. 120 HSS Bright Center Drill

Link 0.1850 Dia. 120 HSS Bright Center Drill

13B5 TYPE DED HSS CENTERDRILL

SKU: 25-L2-166 Categories: Center/ Spot Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: center drill, cobalt drill, holemaking, hss drill, job shop, spot drill
Read more

Link 4 mm Dia. 60 Cobalt TiAlN Center Drill

Link 4 mm Dia. 60 Cobalt TiAlN Center Drill

4.0X10.0 METRIC ST-TYPE DED COBALT CENTERDRILL, TiAlN COAT

SKU: CO-TL-016 Categories: Center/ Spot Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: center drill, cobalt drill, holemaking, hss drill, job shop, spot drill
Read more

Link 0.2280 Dia. 60 HSS Bright Center Drill

Link 0.2280 Dia. 60 HSS Bright Center Drill

1ST4 TYPE DED HSS CENTERDRILL

SKU: 20-L2-114 Categories: Center/ Spot Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: center drill, cobalt drill, holemaking, hss drill, job shop, spot drill
Read more

Link 0.5000 Dia. 90 Cobalt No Flute Countersink-Deburr

Link 0.5000 Dia. 90 Cobalt No Flute Countersink-Deburr

1/2 MAX CUT 90? COBALT NO-FLUTE

SKU: 94-CO-566 Categories: Countersinks, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: cobalt drill, countersink, holemaking, hss drill, job shop, no flute
Read more

Link 0.2090 Dia. 60 HSS Bright Center Drill

Link 0.2090 Dia. 60 HSS Bright Center Drill

4ST4 TYPE DED HSS CENTERDRILL

SKU: 20-L2-123 Categories: Center/ Spot Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: center drill, cobalt drill, holemaking, hss drill, job shop, spot drill
Read more

YG-1 0.0469 Dia. 60 HSS Bright Center Non-Coolant Thru Drill

YG-1 0.0469 Dia. 60 HSS Bright Center Non-Coolant Thru Drill

3/64 HSS(M2) 60 DEGREE POINT LONG LENGTH CENTER DRILL

SKU: D1C90088 Categories: Center/ Spot Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: aerospace, agriculture, automotive, center drill, cobalt drill, energy mfg, holemaking, hss drill, job shop, medical, mold/die, multi spindle, spot drill, standard
Read more

YG-1 0.1250 Dia. 60 HSS Bright Center Non-Coolant Thru Drill

YG-1 0.1250 Dia. 60 HSS Bright Center Non-Coolant Thru Drill

1/8 HSS(M2) 60 DEGREE POINT LONG LENGTH CENTER DRILL

SKU: D1C90098 Categories: Center/ Spot Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: aerospace, agriculture, automotive, center drill, cobalt drill, energy mfg, holemaking, hss drill, job shop, medical, mold/die, multi spindle, spot drill, standard
Read more

YG-1 0.3641 Dia. 135 Cobalt TiN Split Point Screw Machine Non-Coolant Thru Drill

YG-1 0.3641 Dia. 135 Cobalt TiN Split Point Screw Machine Non-Coolant Thru Drill

9.25 HSS(M42) STUB LENGTH DIN1897 SPLIT POINT DRILLS TIN COATED

SKU: D4107992 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: cobalt drill, construction, drill, general, holemaking, hss drill, stub
Read more

Link 0.1910 Dia. 82 HSS Bright Center Drill

Link 0.1910 Dia. 82 HSS Bright Center Drill

11S5 TYPE DED HSS CENTERDRILL

SKU: 15-L2-070 Categories: Center/ Spot Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: center drill, cobalt drill, holemaking, hss drill, job shop, spot drill
Read more

YG-1 0.3906 Dia. 135 HSS TiN Straight Shank Jobber Non-Coolant Thru Drill

YG-1 0.3906 Dia. 135 HSS TiN Straight Shank Jobber Non-Coolant Thru Drill

25/64 HSS(M2) JOBBERS LENGTH STRAIGHT SHANK GOLD-P DRILLS

SKU: D1GP182025 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: automotive, cobalt drill, construction, drill, general, holemaking, hss drill, job shop, jobber
Read more

Link 0.2500 Dia. 90 Cobalt Bright Center-Spot Drill

Link 0.2500 Dia. 90 Cobalt Bright Center-Spot Drill

1/4 X 2 COBALT 90? SPOT & CENTER DRILL

SKU: 97-CO-379 Categories: Center/ Spot Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: center drill, cobalt drill, holemaking, hss drill, job shop, spot drill
Read more

Link 0.2280 Dia. 60 Cobalt Bright Center Drill

Link 0.2280 Dia. 60 Cobalt Bright Center Drill

1ST4 TYPE DED COBALT CENTERDRILL

SKU: 20-CO-114 Categories: Center/ Spot Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: center drill, cobalt drill, holemaking, hss drill, job shop, spot drill
Read more

YG-1 0.4803 Dia. 130 Cobalt TiN Jobber Non-Coolant Thru Drill

YG-1 0.4803 Dia. 130 Cobalt TiN Jobber Non-Coolant Thru Drill

12.2 HSS(M35) JOBBER, WORM PATTERN TYPE STRAIGHT SHANK GOLD-P DRILL FOR DEEP HOLES

SKU: DLGP506122 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: automotive, cobalt drill, construction, drill, general, holemaking, hss drill, job shop, jobber
Read more

Link 0.5000 Dia. 120 HSS Bright Center-Spot Drill

Link 0.5000 Dia. 120 HSS Bright Center-Spot Drill

1/2 X 2 HSS 120? SPOT & CENTER DRILL

SKU: 97-L2-388 Categories: Center/ Spot Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: center drill, cobalt drill, holemaking, hss drill, job shop, spot drill
Read more

YG-1 0.1094 Dia. 135 Cobalt Split Point Aircraft Non-Coolant Thru Drill

YG-1 0.1094 Dia. 135 Cobalt Split Point Aircraft Non-Coolant Thru Drill

7/64 HSSCo5 6″ AIRCRAFT EXTENSION DRILL 135 DEGREE SPLIT POINT COLORING

SKU: DL601007 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: aircraft, cobalt drill, construction, drill, energy mfg, general, holemaking, hss drill, job shop, mold/die
Read more

Link 0.1701 Dia. 82 Cobalt TiN Center Drill

Link 0.1701 Dia. 82 Cobalt TiN Center Drill

18S TYPE DED COBALT CENTERDRILL, TiN COAT

SKU: CO-TN-054 Categories: Center/ Spot Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: center drill, cobalt drill, holemaking, hss drill, job shop, spot drill
Read more

YG-1 0.0960 Dia. 135 Cobalt TiN Parabolic Screw Machine Non-Coolant Thru Drill

YG-1 0.0960 Dia. 135 Cobalt TiN Parabolic Screw Machine Non-Coolant Thru Drill

#41 HSS(M35) SCREW MACHINE PARABOLIC TIN COATED DRILL

SKU: DN515241 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: cobalt drill, construction, drill, general, holemaking, hss drill, screw
Read more

YG-1 0.2031 Dia. 135 Cobalt TiN Straight Shank Jobber Non-Coolant Thru Drill

YG-1 0.2031 Dia. 135 Cobalt TiN Straight Shank Jobber Non-Coolant Thru Drill

13/64 HSS(M42) JOBBERS LENGTH STRAIGHT SHANK GOLD-P DRILLS

SKU: D2GP185013 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: automotive, cobalt drill, construction, drill, general, holemaking, hss drill, job shop, jobber
Read more

Link 0.3750 Dia. 120 Cobalt Bright Center-Spot Drill

Link 0.3750 Dia. 120 Cobalt Bright Center-Spot Drill

3/8 X 4 COBALT 120? SPOT & CENTER DRILL

SKU: 97-CO-419 Categories: Center/ Spot Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: center drill, cobalt drill, holemaking, hss drill, job shop, spot drill
Read more

Link 0.0313 Dia. 90 HSS Center Drill

Link 0.0313 Dia. 90 HSS Center Drill

UA1-U0-90 DEGREE TYPE HSS CENTERDRILL

SKU: 30-90-197 Categories: Center/ Spot Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: center drill, cobalt drill, holemaking, hss drill, job shop, spot drill
Read more

YG-1 0.2090 Dia. 135 HSS Split Point Aircraft Non-Coolant Thru Drill

YG-1 0.2090 Dia. 135 HSS Split Point Aircraft Non-Coolant Thru Drill

#4 HSS 6″ AIRCRAFT EXTENSION DRILL 135 DEGREE SPLIT POINT STEAM HOMO

SKU: D1633253 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: aircraft, cobalt drill, construction, drill, energy mfg, general, holemaking, hss drill, job shop, mold/die
Read more

YG-1 0.1440 Dia. 135 Cobalt Bright Screw Machine Non-Coolant Thru Drill

YG-1 0.1440 Dia. 135 Cobalt Bright Screw Machine Non-Coolant Thru Drill

#27 HSS(M42) SCREW MACHINE DRILL

SKU: D2148127 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: cobalt drill, construction, drill, general, holemaking, hss drill, screw
Read more

YG-1 0.4291 Dia. 130 Cobalt TiN Jobber Non-Coolant Thru Drill

YG-1 0.4291 Dia. 130 Cobalt TiN Jobber Non-Coolant Thru Drill

10.9 HSS(M35) JOBBER, WORM PATTERN TYPE STRAIGHT SHANK GOLD-P DRILL FOR DEEP HOLES

SKU: DLGP506109 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: automotive, cobalt drill, construction, drill, general, holemaking, hss drill, job shop, jobber
Read more

Link 60 Cobalt Bright ST-Type Center Drill Set

Link 60 Cobalt Bright ST-Type Center Drill Set

ST-TYPE COBALT CDRILL #2ST THRU #6ST 5 PC SET

SKU: 05-CO-394 Categories: Center/ Spot Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: center drill, cobalt drill, holemaking, hss drill, job shop, spot drill
Read more

YG-1 0.5000 Dia. 135 HSS Split Point Aircraft Non-Coolant Thru Drill

YG-1 0.5000 Dia. 135 HSS Split Point Aircraft Non-Coolant Thru Drill

1/2 HSS 6″ AIRCRAFT EXTENSION DRILL 135 DEGREE SPLIT POINT STEAM HOMO

SKU: D1631032 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: aircraft, cobalt drill, construction, drill, energy mfg, general, holemaking, hss drill, job shop, mold/die
Read more

YG-1 1.1406 Dia. 118 HSS Black-Gold Silver/ Deming Non-Coolant Thru Drill

YG-1 1.1406 Dia. 118 HSS Black-Gold Silver/ Deming Non-Coolant Thru Drill

1-9/64 HSS(M2) 118 DEGREE SPLIT POINT 3 FLAT GOLD & BLACK S & D DRILL

SKU: D1191109 Categories: Holemaking, HSS/ Cobalt Drills, Silver/ Deming Drills, Solid Drills Tags: automotive, cobalt drill, construction, holemaking, hss drill, job shop, silver/deming drill, standard
Read more

YG-1 0.2812 Dia. 130 Cobalt TiN Jobber Non-Coolant Thru Drill

YG-1 0.2812 Dia. 130 Cobalt TiN Jobber Non-Coolant Thru Drill

9/32 HSS(M35) JOBBER, WORM PATTERN TYPE SS GOLD-P DRILL FOR DEEP HOLES

SKU: DLGP511018 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: automotive, cobalt drill, construction, drill, general, holemaking, hss drill, job shop, jobber
Read more

YG-1 0.9375 Dia. 118 HSS Black-Gold Silver/ Deming Non-Coolant Thru Drill

YG-1 0.9375 Dia. 118 HSS Black-Gold Silver/ Deming Non-Coolant Thru Drill

15/16 HSS(M2) 118 DEGREE SPLIT POINT 3 FLAT GOLD & BLACK S & D DRILL

SKU: D1191060 Categories: Holemaking, HSS/ Cobalt Drills, Silver/ Deming Drills, Solid Drills Tags: automotive, cobalt drill, construction, holemaking, hss drill, job shop, silver/deming drill, standard
Read more

YG-1 0.4844 Dia. 130 Cobalt TiN Jobber Non-Coolant Thru Drill

YG-1 0.4844 Dia. 130 Cobalt TiN Jobber Non-Coolant Thru Drill

31/64 HSS(M35) JOBBER, WORM PATTERN TYPE SS GOLD-P DRILL FOR DEEP HOLES

SKU: DLGP511031 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: automotive, cobalt drill, construction, drill, general, holemaking, hss drill, job shop, jobber
Read more

YG-1 0.1094 Dia. 135 Cobalt TiN Straight Shank Jobber Non-Coolant Thru Drill

YG-1 0.1094 Dia. 135 Cobalt TiN Straight Shank Jobber Non-Coolant Thru Drill

7/64 HSS(M42) JOBBERS LENGTH STRAIGHT SHANK GOLD-P DRILLS

SKU: D2GP185007 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: automotive, cobalt drill, construction, drill, general, holemaking, hss drill, job shop, jobber
Read more

YG-1 0.2340 Dia. 135 Cobalt TiN Screw Machine Non-Coolant Thru Drill

YG-1 0.2340 Dia. 135 Cobalt TiN Screw Machine Non-Coolant Thru Drill

.234 HSS(M42) SCREW MACHINE DRILL TIN COATED

SKU: D4147201 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: cobalt drill, construction, drill, general, holemaking, hss drill, screw
Read more

Link 0.1770 Dia. 120 HSS Bright Center Drill

Link 0.1770 Dia. 120 HSS Bright Center Drill

16B TYPE DED HSS HEY CENTERDRILL

SKU: 26-L2-676 Categories: Center/ Spot Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: center drill, cobalt drill, holemaking, hss drill, job shop, spot drill