dugs with whichto cover tbc beads of screws that are deeply ct)untersunk. Ccii/rr-hils. l-ig. i;!2. woik on the samt ])rinci])le as auger-bits,except tliat tbc spurs ha\c no screw, and hence have to l)e ])usliedfoicibly into the wood. Sizes are given in l()ths of an incli. Theyarc useful for soft… … Fii,- \^l. I-iiil;-a Try-Square asa Guidi- ill rjoriii^. WOOD HAND TOOLS. 87
Woodwork
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