Hasluck, Paul N. (Paul Nooncree), 1854-1931, ed · Philadelphia, D. McKay · leaf 36
Fig. 101.—Shell Gimlet. Fig. 102.—Twist-nose Gimlet. of the shape shown for the twist-nose gimletby Fig. 102 ; it screws itself into the wood,and the chips tend to rise out of the hole,It is found to split narrow strips of wood,but it answers well for all other purposes.All the above bits can be… … the jaws are expanded or contracted so asto grip the shank of any size bit. Thiskind of brace may be had with a ratchetmovement, which is very useful for boringor turning screws in corner positions wherea complete revolution is not possible. Bitsare known in very numerous forms.The pin bit is like…
Carpentry · Joinery
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