Cobalt Drill Bits 23/64, 3/8 , 25/64, 13/32, 27/64, 7/16, 29/64, 15/32, 31/64 & 1/2 Inch

Cobalt Drill Bits have been designed to drill high density heavy metals such as tempered metals,cast iron, titanium alloys and stainless steel.

Irwin 3016031 31/64 Inch Cobalt High Speed Steel Drill Bit
SKU: ADGA-8493
UPC: 024721067227
$8.89   $7.59
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Twist drill bits cobalt-135 degree reduced shank 3/8 inch reduced shank dia.x oa lgth 31/64 inch x 3-1/8 Five percent cobalt and heavy duty web construction...


Irwin 3016130 15/32 Inch Cobalt High Speed Steel Drill Bit
SKU: AEKA-4478
UPC: 042526633300
$8.89   $7.59
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Twist drill bits hss-135 degree point jobber length straight shank dia.x oa lgth 15/32 inch x5-3/4 High speed steel with M-35, five percent cobalt, for...


Irwin 3016026 13/32 Inch Cobalt High Speed Steel Drill Bit
SKU: AJBA-3959
UPC: 024721067173
$6.79   $5.69
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Twist drill bits cobalt-135 degree reduced shank 3/8 inch reduced shank dia.x oa lgth 13/32 inch x 2 Five percent cobalt and heavy duty web construction for...


Vulcan 250701OR 3/8 By 5 Inch M35 Cobalt Steel 135 Degree Split Point Drill Bit
SKU: BKEA-9630
UPC: 718928703759
$5.99   $4.89
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Drill bits cobalt -split point 3/8 inch. M-35 five per cent cobalt and extra thick drill core for optimum life and durability in hardened steel super alloys...


Irwin 3016027 27/64 Inch Cobalt High Speed Steel Drill Bit
SKU: BLEA-7695
UPC: 024721067180
$7.29   $6.09
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Twist drill bits cobalt-135 degree reduced shank 3/8 inch reduced shank dia.x oa lgth 27/64 inch x 2-1/4 Five percent cobalt and heavy duty web construction...


Irwin 3016030 15/32 Inch Cobalt High Speed Steel Drill Bit
SKU: DEGA-9785
UPC: 024721067210
$8.59   $7.29
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Twist drill bits cobalt-135 degree reduced shank 3/8 inch reduced shank dia.x oa lgth 15/32 inch x 2-7/8 Five percent cobalt and heavy duty web construction...


Irwin 3016029 29/64 Inch Cobalt High Speed Steel Drill Bit
SKU: DJDA-2568
UPC: 024721067203
$8.69   $7.39
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Twist drill bits cobalt-135 degree reduced shank 3/8 inch reduced shank dia.x oa lgth 29/64 inch x 2-3/4 Five percent cobalt and heavy duty web construction...


Irwin 3016025 25/64 Inch Cobalt High Speed Steel Drill Bit
SKU: DJLA-0244
UPC: 024721067166
$7.55   $5.39
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Twist drill bits cobalt-135 degree reduced shank 3/8 inch reduced shank dia.x oa lgth 25/64 inch x1-7/8 Five percent cobalt and heavy duty web construction...


Vulcan 251511OR 1/2 By 6 Inch M35 Cobalt Steel 135 Degree Split Point 3/8 Shank Drill Bit
SKU: DKBA-5330
UPC: 718928703773
$11.55   $9.19
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Drill bits cobalt -split point 3/8 inch reduced shank 1/2 inch diameter. M-35 five per cent cobalt and extra thick drill core for optimum life and durability...


Irwin 3016132 1/2 Inch Cobalt High Speed Steel Drill Bit
SKU: EAAA-4004
UPC: 024721089472
$8.45   $6.79
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Twist drill bits hss-135 degree point jobber length straight shank dia.x oa lgth 1/2 inch x6 High speed steel with M-35, five percent cobalt, for higher heat...


Irwin 30166126 13/32 Inch Cobalt High Speed Steel Drill Bit
SKU: EAAA-4089
UPC: 024721089410
$6.79   $5.69
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Ships in 1 to 2 Weekdays

Twist drill bits hss-135 degree point jobber length straight shank dia.x oa lgth 13/32 inch x5-1/4 High speed steel with M-35, five percent cobalt, for...


Irwin 3016128 7/16 Inch Cobalt High Speed Steel Drill Bit
SKU: EAAA-4097
UPC: 024721089434
$7.19   $5.99
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Twist drill bits hss-135 degree point jobber length straight shank dia.x oa lgth 7/16 inch x5-1/2 High speed steel with M-35, five percent cobalt, for higher...


Irwin 63124 3/8 Inch By 3-1/8 Inch Cobalt High Speed Steel
SKU: EAAA-4228
UPC: 042526631245
$25.80/case = $4.30/each

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Cobalt High Speed Steel Fractional Straight Shank Jobber Length Drill Bits are constructed of M-35 5 percent cobalt high speed steel for super abrasive...


Irwin 63125 25/64 Inch By 3-1/4 Inch Cobalt High Speed Steel
SKU: EAAA-4236
UPC: 042526631252
$27.00/case = $4.50/each

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Cobalt High Speed Steel Fractional Straight Shank Jobber Length Drill Bits are constructed of M-35 5 percent cobalt high speed steel for super abrasive...


Irwin 63132 1/2 Inch By 3-3/4 Inch Cobalt High Speed Steel
SKU: EAAA-4301
UPC: 042526631320
$38.40/case = $6.40/each

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Cobalt High Speed Steel Fractional Straight Shank Jobber Length Drill Bits are constructed of M-35 5 percent cobalt high speed steel for super abrasive...


Irwin 63127 27/64 Inch By 3-3/8 Inch Cobalt High Speed Steel
SKU: EAAA-4352
UPC: 042526631276
$30.60/case = $5.10/each

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Cobalt High Speed Steel Fractional Straight Shank Jobber Length Drill Bits are constructed of M-35 5 percent cobalt high speed steel for super abrasive...


Irwin 63128 7/16 Inch By 3-7/16 Inch Cobalt High Speed Steel
SKU: EAAA-4360
UPC: 042526631283
$31.80/case = $5.30/each

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Cobalt High Speed Steel Fractional Straight Shank Jobber Length Drill Bits are constructed of M-35 5 percent cobalt high speed steel for super abrasive...


Irwin 63129 29/64 Inch By 3-9/16 Inch Cobalt High Speed Steel
SKU: EAAA-4378
UPC: 042526631290
$37.20/case = $6.20/each

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Cobalt High Speed Steel Fractional Straight Shank Jobber Length Drill Bits are constructed of M-35 5 percent cobalt high speed steel for super abrasive...


Irwin 63130 15/32 Inch By 3-5/8 Inch Cobalt High Speed Steel
SKU: EAAA-4386
UPC: 042526631306
$37.80/case = $6.30/each

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Ships in 1 to 2 Weekdays

Cobalt High Speed Steel Fractional Straight Shank Jobber Length Drill Bits are constructed of M-35 5 percent cobalt high speed steel for super abrasive...


Irwin 63131 31/64 Inch By 3-11/16 Inch Cobalt High Speed Steel
SKU: EAAA-4394
UPC: 042526631313
$39.60/case = $6.60/each

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Cobalt High Speed Steel Fractional Straight Shank Jobber Length Drill Bits are constructed of M-35 5 percent cobalt high speed steel for super abrasive...


Irwin 3016024 3/8 Inch Cobalt High Speed Steel Drill Bit
SKU: EAAA-4830
UPC: 024721067159
$7.05   $4.89
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Twist drill bits hss-135 degree point jobber length straight shank dia.x oa lgth 3/8 inch x5 High speed steel with M-35, five percent cobalt, for higher heat...


DeWalt DWA1224 3/8 By 5 Inch Industrial Cobalt Drill Bit
SKU: EDCA-5414
UPC: 885911410830
$13.79   $11.99
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Dewalt DW1224 Pilot Point Drill 3/8 Inch by 5 Inch Overall Cobalt Gold Ferrous Oxide. Made of industrial strength cobalt for optimum life and durability with...


DeWalt DWA1232 1/2 By 6 Inch Industrial Cobalt Drill Bit
SKU: EDCA-5422
UPC: 885911410854
$21.39   $17.89
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Dewalt DW1232 Pilot Point Drill 1/2 Inch by 6 Inch Overall Cobalt Gold Ferrous Oxide. Made of industrial strength cobalt for optimum life and durability with...


DeWalt DWA1228 7/16 By 5-5/8 Inch Industrial Cobalt Drill Bit
SKU: EDLA-1675
UPC: 885911410847
$17.39   $15.19
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Dewalt DW1228 Pilot Point Drill 7/16 Inch by 5-1/2 Inch Overall Cobalt Gold Ferrous Oxide. Made of industrial strength cobalt for optimum life and durability...