COBALT DRILL SETS

COBALT Drill Sets with Index Case.
• Cobalt – General Purpose Jobber Length Twist Drill Sets
• Consists of the most popular size drills
• Manufactured from the finest cobalt steels
• Compact, rugged index makes drill selection easy and accurate
Another option for drilling hard steels or chrome steel is cobalt alloy drills. They're manufactured from solid alloy, not just coated like titanium bits, and sometimes marked HSS Co. The addition of cobalt makes the drills more durable and that they can withstand higher temperatures during drilling without losing their edge. The disadvantage is that they're costlier, more brittle, and thus more likely to carve the leading edge. Cobalt steel bits can, of course, be used for drilling "normal" low-carbon steel or other metals.
Choose among a big range of kind.
Product Name SIZE FROM TO BY Qty SFM    
COBALT DRILL SET FRACTIONAL #29 SIZE:FRACTIONAL FROM:1/16 TO:1/2 BY:64th Qty:29
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Only for registered users
COBALT DRILL SET FRACTIONAL #21 SIZE:FRACTIONAL FROM:1/16 TO:3/8 BY:64th Qty:21
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Only for registered users
COBALT DRILL SET LETTER #26pcs SIZE:LETTER FROM:A TO:Z BY:x1 Qty:26
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Only for registered users
COBALT DRILL SET WIRE #60pcs SIZE:WIRE FROM:1 TO:60 BY:X1 Qty:60
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Only for registered users
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