Brownells Brownells Brownells 75th Anniversary - A Shooting Heritage

For Frozen Screw Removal And Long, Long Life

If none of the common methods for removing a frozen screw work, and drilling is in order, these carbide center drills should be used to center and "start" the hole. With the spindle at fairly high speed, bring the center drill down to the screw head and adjust position until centered in the screw. Apply pressure and cut until center hole is deep enough to allow the proper undersized, regular drill bit to start cutting without catching on the screw head slot. Better for drilling broken taps too, for they will cut center holes in even the hardest ones. And, because of the large body mass of the tool relative to the small drill diameter, it is very sturdy and rigid. Will not flex or walk.


Big Book Catalog, Issue:67, Page:469
SPECS: #1, .125 body/.0468 drill; #2, .187 body/.0781 drill; #3, .250 body/.1093 drill; #4, .312 body/.1250 drill.
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4 Item(s)
40204680 #1 CARBIDE CENTER DRILL
317-402-001WB
#1 Carbide Center Drill
317402001#1 Carbide Center Drill

Mfr Part: 40204680

$24.99

In Stock

Style: Center Carbides

40207810 #2 CARBIDE CENTER DRILL
317-402-002WB
#2 Carbide Center Drill
317402002#2 Carbide Center Drill

Mfr Part: 40207810

$32.99

In Stock

Style: Center Carbides

40210930 #3 CARBIDE CENTER DRILL
317-402-003WB
#3 Carbide Center Drill
317402003#3 Carbide Center Drill

Mfr Part: 40210930

$36.99

In Stock

Style: Center Carbides

40212500 #4 CARBIDE CENTER DRILL
317-402-004WB
#4 Carbide Center Drill
317402004#4 Carbide Center Drill

Mfr Part: 40212500

$53.99

In Stock

Style: Center Carbides

CARBIDE CENTER DRILL