10 



Gleanings in Bee Culture 



Sharpen your tools 30 days Free 

 on this new, shaft-drive 



LUTHER *' HUMMER" 



Tool Grinder 



Foot and Engine Power 



Return 



Coupon 



Does the toughest job of grinding easily in a few 

 minutes— your tools will be always sharp, making 

 work go faster and easier. You can prove by actual use 

 of this machine for 30 days' Free Trial. If you are not 

 satisfied that it saves money, time, and tools, send it back at 

 my expense. Built all of steel and iron — no chains — shaft drive 

 like automobile — dust-proof ball bearings — gravity lubrication — 5 years 

 guarantee — runs 4000 revolutions by foot power — easy as sewing nia- 

 cliine— absolutely revolutionizes tool sharpening. 



Jlcs^'^ 



>'»T 



^E AND SA"'' 



14 Machines in One 



Farm outfit, and Mechanic's out- 

 fit each include 14 attachments and 

 accessories providing for every 

 grinding or sharpening need for 

 farmers, carpenters, mechanics, 

 shops, etc. Tool rests and attach- 

 ments enable 14-year-old boy to do 

 difficult sharpening such as twist 

 drills, gumming saws, grinding 

 discs, sickles, etc. 



Dimo-Grit— the wheel for steel— 25 times faster 



than grindstone — 10 times more efficient 



than emery — will not draw temper 



Dimo-Grit the new artificial diamond abrasive, is a twin product of car- 

 borundum. Dimo-Grit is especially suitable for steel, leaving the smooth- 

 est, keenest edge — cuts hardest steel as emery does soft copper. It 



Extra Attachments 



With the extra attachments the 

 " Hummer " can be used as a turn- 

 ing lathe, force-feed drill, jig and 

 circle saw, blacksmith forge— IB ex- 

 tra attachments in all which equip 

 your shop at low cost. If you 

 bought machines to do the work 

 these attachments do, the cost 

 would be many times greater. 



ItiO 



, IRON SURFACER 

 tpn SANDER 



peels steel away in tiny shavings 

 grindstone or emery wheels— never 

 glazes — no heat developed — no need 

 of hard pressing or water cooling- 

 no danger of drawing temper. 

 South African diamonds could cut 

 steel no quicker — outwears any 

 number of emery wheels and grind- 

 stones. Carborundum wheels fur- 

 nished if wanted. , 



Return this Coupon for 30 

 Days' Free Trial Offer 



You do not put yourself under 

 any obligations by returning this 

 coupon. We will send 40-page Free 

 Book reprinting the story of arti- 

 ficial diamond abrasives as printed 

 in McClure's^^ Magazine, and de- 

 scribing the "Hummer" grinder 

 and attachments. Then you can 

 select an outfit for 30 days' abso- 

 lutely free trial. 



Luther Grinder Mfg. Go. 



107 Stroh BIdg., Milwaukee, Wis. 



instead of wearing it away like 



14 m 



COUPON 



Luther Grinder 



Mfg. Co. 



107 Stroh Bldg. 



Milwaukee, Wis. 



Please send, without cost or 

 obligation tomeyourP.il days' 

 Free Trial OfiEer and iO-page 

 Free Book. 



Name . 



Address. 



2 



4 



8 



'9 



lO 





Dimo-Grit Sharpening Stones 



Ask your dealer for Dimo- 

 Grit sharpening- stones — the 

 fastest, smoothest-cutting: 

 stones for steel — look for 

 the name "Dimo-CrH," 



12 



14 MaphinPC in flnp J,— Fine Dimo-Grit wheel. 2 

 IH maCnineS in UntJ coarse Dimo-Grit wheel. 3— 

 Universal tool rest. 4— Chisel and plane bitgruide. 6 

 Dimo-Grit razor hone. 6— Dimo-Grit scythe stone. 7— 

 Dimo-Grit saw g-ummer. 8— Felt polishing- wheel. 9— 

 Medium Dimo-Grit wheel. 10 — Cloth buffing- wheel. 

 11— Dimo-Grit oil stone. 12 — Dimo-Grit pocket hone. 

 13M— Plane bit honing: attachment. 14 — Twist drill 

 sharpening- attachment. Farm outfit has sickle and disc 

 shaJ-peniug- attachment. , 



