HSS/ Cobalt Drills

Showing 801–850 of 3073 results

Read more

YG-1 0.2280 Dia. 135 Cobalt Bright Screw Machine Non-Coolant Thru Drill

YG-1 0.2280 Dia. 135 Cobalt Bright Screw Machine Non-Coolant Thru Drill

#1 HSS(M42) SCREW MACHINE DRILL

SKU: D2148101 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: cobalt drill, construction, drill, general, holemaking, hss drill, screw
Read more

Link 0.0313 Dia. 100 Cobalt Bright Center Drill

Link 0.0313 Dia. 100 Cobalt Bright Center Drill

0-100 TYPE DED COBALT CENTERDRILL

SKU: 100-CO-001 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 0.2040 Dia. 90 Cobalt Bright Center Drill

Link 0.2040 Dia. 90 Cobalt Bright Center Drill

6-90 TYPE DED COBALT CENTERDRILL

SKU: 90-CO-007 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 0.3898 Dia. 135 Cobalt TiN Straight Shank Jobber Non-Coolant Thru Drill

YG-1 0.3898 Dia. 135 Cobalt TiN Straight Shank Jobber Non-Coolant Thru Drill

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

SKU: DLGP195099 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 0.3641 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

YG-1 0.3390 Dia. 135 Cobalt TiN Straight Shank Jobber Non-Coolant Thru Drill

YG-1 0.3390 Dia. 135 Cobalt TiN Straight Shank Jobber Non-Coolant Thru Drill

R HSS(M42) JOBBERS LENGTH STRAIGHT SHANK GOLD-P DRILLS

SKU: D2GP186118 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 0.0890 Dia. 135 Cobalt TiN Screw Machine Non-Coolant Thru Drill

YG-1 0.0890 Dia. 135 Cobalt TiN Screw Machine Non-Coolant Thru Drill

.0890 HSS(M42) SCREW MACHINE DRILL TIN COATED

SKU: D4148143 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: cobalt drill, construction, drill, general, holemaking, hss drill, screw
Read more

Link 0.1850 Dia. 82 HSS TiN Center Drill

Link 0.1850 Dia. 82 HSS TiN Center Drill

13S TYPE DED HSS CENTERDRILL, TiN COAT

SKU: 15-TN-049 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 0.2187 Dia. 135 HSS Split Point Aircraft Non-Coolant Thru Drill

YG-1 0.2187 Dia. 135 HSS Split Point Aircraft Non-Coolant Thru Drill

7/32 HSS 6″ AIRCRAFT EXTENSION DRILL 135 DEGREE SPLIT POINT STEAM HOMO

SKU: D1631014 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 1.2031 Dia. 118 HSS Oxide Morse Taper Shank Non-Coolant Thru Drill

YG-1 1.2031 Dia. 118 HSS Oxide Morse Taper Shank Non-Coolant Thru Drill

1-13/64 HSS(M2) MORSE TAPER SHANK TWIST DRILLS

SKU: D1211113 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: cobalt drill, drill, general, holemaking, hss drill, job shop, standard
Read more

YG-1 0.0669 Dia. 135 Cobalt TiN Straight Shank Jobber Non-Coolant Thru Drill

YG-1 0.0669 Dia. 135 Cobalt TiN Straight Shank Jobber Non-Coolant Thru Drill

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

SKU: DLGP195017 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 0.1457 Dia. 130 TiN Jobber Non-Coolant Thru Drill

YG-1 0.1457 Dia. 130 TiN Jobber Non-Coolant Thru Drill

3.7MM HSS-EX HPD-SUS TWIST DRILL TiN-COATED (JOBBERS)

SKU: 0371KCN Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: cobalt drill, construction, drill, general, holemaking, hss drill, jobber
Read more

Link 0.1772 Dia. HSS Bright LH Center Drill

Link 0.1772 Dia. HSS Bright LH Center Drill

45R5 TYPE LH DED HSS CENTERDRILL

SKU: 11-L2-037 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 120 Cobalt Bright Spot Drill Set

Link 120 Cobalt Bright Spot Drill Set

120? COBALT UNIDAPT SPOT DRILL 6 PC SET

SKU: 05-CO-391 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 0.3583 Dia. 135 Cobalt TiN Split Point Screw Machine Non-Coolant Thru Drill

YG-1 0.3583 Dia. 135 Cobalt TiN Split Point Screw Machine Non-Coolant Thru Drill

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

SKU: D4107091 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: cobalt drill, construction, drill, general, holemaking, hss drill, stub
Read more

YG-1 0.9844 Dia. 118 HSS Black-Gold Silver/ Deming Non-Coolant Thru Drill

YG-1 0.9844 Dia. 118 HSS Black-Gold Silver/ Deming Non-Coolant Thru Drill

63/64 HSS(M2) 118 DEGREE SPLIT POINT 3 FLAT GOLD & BLACK S & D DRILL

SKU: D1191063 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 0.2660 Dia. 135 Cobalt TiN Screw Machine Non-Coolant Thru Drill

YG-1 0.2660 Dia. 135 Cobalt TiN Screw Machine Non-Coolant Thru Drill

.266 HSS(M42) SCREW MACHINE DRILL TIN COATED

SKU: D4147208 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: cobalt drill, construction, drill, general, holemaking, hss drill, screw
Read more

YG-1 0.3680 Dia. 135 Cobalt TiN Screw Machine Non-Coolant Thru Drill

YG-1 0.3680 Dia. 135 Cobalt TiN Screw Machine Non-Coolant Thru Drill

.368 HSS(M42) SCREW MACHINE DRILL TIN COATED

SKU: D4147221 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: cobalt drill, construction, drill, general, holemaking, hss drill, screw
Read more

YG-1 0.5413 Dia. 135 Cobalt TiN Split Point Screw Machine Non-Coolant Thru Drill

YG-1 0.5413 Dia. 135 Cobalt TiN Split Point Screw Machine Non-Coolant Thru Drill

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

SKU: D4107837 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: cobalt drill, construction, drill, general, holemaking, hss drill, stub
Read more

Link 0.2280 Dia. 60 HSS Bright Center Drill

Link 0.2280 Dia. 60 HSS Bright Center Drill

1ST TYPE DED HSS CENTERDRILL

SKU: 20-L2-092 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 1.3437 Dia. 118 HSS Oxide Morse Taper Shank Non-Coolant Thru Drill

YG-1 1.3437 Dia. 118 HSS Oxide Morse Taper Shank Non-Coolant Thru Drill

1-11/32 HSS(M2) MORSE TAPER SHANK TWIST DRILLS

SKU: D1211122 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: cobalt drill, drill, general, holemaking, hss drill, job shop, standard
Read more

YG-1 0.0670 Dia. 135 HSS TiN Straight Shank Jobber Non-Coolant Thru Drill

YG-1 0.0670 Dia. 135 HSS TiN Straight Shank Jobber Non-Coolant Thru Drill

#51 HSS(M2) JOBBERS LENGTH STRAIGHT SHANK GOLD-P DRILLS

SKU: D1GP138206 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 TiN Center-Spot Drill

Link 0.2500 Dia. 90 Cobalt TiN Center-Spot Drill

1/4 X 4 COBALT 90? SPOT & CENTER DRILL, TiN COAT

SKU: CO-TN-380 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

2ST4 TYPE DED HSS CENTERDRILL

SKU: 20-L2-117 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 LH Center Drill

Link 0.2280 Dia. 60 HSS Bright LH Center Drill

1ST3 TYPE LH DED HSS CENTERDRILL

SKU: 11-L2-113 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 0.1990 Dia. 60 Cobalt TiN Center Drill

Link 0.1990 Dia. 60 Cobalt TiN Center Drill

8ST TYPE DED COBALT CENTERDRILL, TiN COAT

SKU: CO-TN-099 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 0.5512 Dia. 130 TiN Jobber Non-Coolant Thru Drill

YG-1 0.5512 Dia. 130 TiN Jobber Non-Coolant Thru Drill

14.0MM HSS-EX HPD-SUS TWIST DRILL TiN-COATED (JOBBERS)

SKU: 1401KCN Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: cobalt drill, construction, drill, general, holemaking, hss drill, jobber
Read more

Link 0.2055 Dia. HSS Bright Center Drill

Link 0.2055 Dia. HSS Bright Center Drill

5R TYPE DED HSS CENTERDRILL

SKU: 10-L2-006 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. 60 Cobalt Center Drill

Link 0.0313 Dia. 60 Cobalt Center Drill

UA1-U0R TYPE COBALT CENTERDRILL

SKU: 30-CO-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 0.2008 Dia. 130 Cobalt TiN Jobber Non-Coolant Thru Drill

YG-1 0.2008 Dia. 130 Cobalt TiN Jobber Non-Coolant Thru Drill

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

SKU: DLGP506051 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 0.6250 Dia. 60 Bright Standard Non-Coolant Thru Drill

YG-1 0.6250 Dia. 60 Bright Standard Non-Coolant Thru Drill

STEEL UP TO 35HRc/STAINLESS/COPPER

SKU: 2401L Categories: Center/ Spot Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: center drill, cobalt drill, construction, holemaking, hss drill, spot drill, standard
Read more

YG-1 0.1719 Dia. 135 Cobalt Split Point Aircraft Non-Coolant Thru Drill

YG-1 0.1719 Dia. 135 Cobalt Split Point Aircraft Non-Coolant Thru Drill

11/64 HSSCo5 6″ AIRCRAFT EXTENSION DRILL 135 DEGREE SPLIT POINT COLORING

SKU: DL601011 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 0.4449 Dia. 130 TiN Jobber Non-Coolant Thru Drill

YG-1 0.4449 Dia. 130 TiN Jobber Non-Coolant Thru Drill

11.3MM HSS-EX HPD-SUS TWIST DRILL TiN-COATED (JOBBERS)

SKU: 1131KCN Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: cobalt drill, construction, drill, general, holemaking, hss drill, jobber
Read more

YG-1 0.3898 Dia. 135 Cobalt TiN Split Point Screw Machine Non-Coolant Thru Drill

YG-1 0.3898 Dia. 135 Cobalt TiN Split Point Screw Machine Non-Coolant Thru Drill

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

SKU: D4107099 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: cobalt drill, construction, drill, general, holemaking, hss drill, stub
Read more

YG-1 0.3150 Dia. 135 Cobalt TiN Straight Shank Jobber Non-Coolant Thru Drill

YG-1 0.3150 Dia. 135 Cobalt TiN Straight Shank Jobber Non-Coolant Thru Drill

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

SKU: DLGP195080 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 1.1719 Dia. 118 HSS Black-Gold Silver/ Deming Non-Coolant Thru Drill

YG-1 1.1719 Dia. 118 HSS Black-Gold Silver/ Deming Non-Coolant Thru Drill

1-11/64 HSS(M2) 118 DEGREE SPLIT POINT 3 FLAT GOLD & BLACK S & D DRILL

SKU: D1191111 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 0.0512 Dia. 135 Cobalt TiN Straight Shank Jobber Non-Coolant Thru Drill

YG-1 0.0512 Dia. 135 Cobalt TiN Straight Shank Jobber Non-Coolant Thru Drill

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

SKU: DLGP195013 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 0.0313 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 0.2913 Dia. 130 Cobalt TiN Jobber Non-Coolant Thru Drill

YG-1 0.2913 Dia. 130 Cobalt TiN Jobber Non-Coolant Thru Drill

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

SKU: DLGP506074 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 0.413 Dia. 135 Cobalt Split Point Aircraft Non-Coolant Thru Drill

YG-1 0.413 Dia. 135 Cobalt Split Point Aircraft Non-Coolant Thru Drill

Z HSSCo5 12″ AIRCRAFT EXTENSION DRILL 135 DEGREE SPLIT POINT COLORING

SKU: DL605126 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 0.1110 Dia. 135 HSS Bright Screw Machine Non-Coolant Thru Drill

YG-1 0.1110 Dia. 135 HSS Bright Screw Machine Non-Coolant Thru Drill

#34 HSS(M2) SCREW MACHINE DRILL

SKU: D1119234 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: cobalt drill, construction, drill, general, holemaking, hss drill, screw
Read more

YG-1 0.2953 Dia. 130 Cobalt TiN Jobber Non-Coolant Thru Drill

YG-1 0.2953 Dia. 130 Cobalt TiN Jobber Non-Coolant Thru Drill

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

SKU: DLGP506075 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 0.2130 Dia. HSS Bright LH Center Drill

Link 0.2130 Dia. HSS Bright LH Center Drill

3R TYPE LH DED HSS CENTERDRILL

SKU: 11-L2-004 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 0.8281 Dia. 118 HSS Black-Gold Silver/ Deming Non-Coolant Thru Drill

YG-1 0.8281 Dia. 118 HSS Black-Gold Silver/ Deming Non-Coolant Thru Drill

53/64 HSS(M2) 118 DEGREE SPLIT POINT 3 FLAT GOLD & BLACK S & D DRILL

SKU: D1191053 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 0.0420 Dia. 135 Cobalt TiN Screw Machine Non-Coolant Thru Drill

YG-1 0.0420 Dia. 135 Cobalt TiN Screw Machine Non-Coolant Thru Drill

.0420 HSS(M42) SCREW MACHINE DRILL TIN COATED

SKU: D4148158 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: cobalt drill, construction, drill, general, holemaking, hss drill, screw
Read more

YG-1 0.1299 Dia. 130 Cobalt TiN Jobber Non-Coolant Thru Drill

YG-1 0.1299 Dia. 130 Cobalt TiN Jobber Non-Coolant Thru Drill

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

SKU: DLGP506033 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 0.1929 Dia. 130 Cobalt TiN Jobber Non-Coolant Thru Drill

YG-1 0.1929 Dia. 130 Cobalt TiN Jobber Non-Coolant Thru Drill

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

SKU: DLGP506049 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. 82 Cobalt Bright Countersink

Link 0.5000 Dia. 82 Cobalt Bright Countersink

1/2 OD 82? 6-FLUTE COBALT COUNTERSINK

SKU: 91-CO-561 Categories: Countersinks, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: cobalt drill, countersink, holemaking, hss drill, job shop
Read more

YG-1 0.2598 Dia. 135 Cobalt TiN Split Point Screw Machine Non-Coolant Thru Drill

YG-1 0.2598 Dia. 135 Cobalt TiN Split Point Screw Machine Non-Coolant Thru Drill

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

SKU: D4107066 Categories: General Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: cobalt drill, construction, drill, general, holemaking, hss drill, stub
Read more

Link 0.2090 Dia. HSS Bright Center Drill

Link 0.2090 Dia. HSS Bright Center Drill

4R4 TYPE DED HSS CENTERDRILL

SKU: 10-L2-033 Categories: Center/ Spot Drills, Holemaking, HSS/ Cobalt Drills, Solid Drills Tags: center drill, cobalt drill, holemaking, hss drill, job shop, spot drill